Finding the Fourth Proportional to 1,658,647,156.42, 2,487,980,035.56 and 553,248,978.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,658,647,156.42 : 2,487,980,035.56 = 553,248,978.64 : x
2. Step 2: Convert to fraction form
   1,658,647,156.42/2,487,980,035.56 = 553,248,978.64/x
3. Step 3: Cross multiply
   1,658,647,156.42x = 2,487,980,035.56 × 553,248,978.64
4. Step 4: Simplify right side
   1,658,647,156.42x = 1,376,472,413,550,280,704
5. Step 5: Solve for x
   x = 1,376,472,413,550,280,704/1,658,647,156.42
6. Step 6: Final answer
   x = 829,876,570.33