Finding the Fourth Proportional to 2,078,062,566.57, 3,117,494,886.88 and 678,670,630.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078,062,566.57 : 3,117,494,886.88 = 678,670,630.01 : x
2. Step 2: Convert to fraction form
   2,078,062,566.57/3,117,494,886.88 = 678,670,630.01/x
3. Step 3: Cross multiply
   2,078,062,566.57x = 3,117,494,886.88 × 678,670,630.01
4. Step 4: Simplify right side
   2,078,062,566.57x = 2,115,752,218,931,803,392
5. Step 5: Solve for x
   x = 2,115,752,218,931,803,392/2,078,062,566.57
6. Step 6: Final answer
   x = 1,018,136,918.96