Finding the Fourth Proportional to 1,117,702.17, 1,542,429.18 and 608,404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,117,702.17 : 1,542,429.18 = 608,404.50 : x
2. Step 2: Convert to fraction form
   1,117,702.17/1,542,429.18 = 608,404.50/x
3. Step 3: Cross multiply
   1,117,702.17x = 1,542,429.18 × 608,404.50
4. Step 4: Simplify right side
   1,117,702.17x = 938,420,854,043.31
5. Step 5: Solve for x
   x = 938,420,854,043.31/1,117,702.17
6. Step 6: Final answer
   x = 839,598.31