Finding the Fourth Proportional to 1,078,634,861.98, 1,488,092,588.74 and 626,435,851.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078,634,861.98 : 1,488,092,588.74 = 626,435,851.54 : x
2. Step 2: Convert to fraction form
   1,078,634,861.98/1,488,092,588.74 = 626,435,851.54/x
3. Step 3: Cross multiply
   1,078,634,861.98x = 1,488,092,588.74 × 626,435,851.54
4. Step 4: Simplify right side
   1,078,634,861.98x = 932,194,548,005,900,288
5. Step 5: Solve for x
   x = 932,194,548,005,900,288/1,078,634,861.98
6. Step 6: Final answer
   x = 864,235,508.11