Finding the Fourth Proportional to 1,340,889.47, 2,012,598.22 and 488,784.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,340,889.47 : 2,012,598.22 = 488,784.72 : x
2. Step 2: Convert to fraction form
   1,340,889.47/2,012,598.22 = 488,784.72/x
3. Step 3: Cross multiply
   1,340,889.47x = 2,012,598.22 × 488,784.72
4. Step 4: Simplify right side
   1,340,889.47x = 983,727,257,435.20
5. Step 5: Solve for x
   x = 983,727,257,435.20/1,340,889.47
6. Step 6: Final answer
   x = 733,637.84