Finding the Fourth Proportional to 1,017,118.17, 1,403,520.82 and 609,209.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017,118.17 : 1,403,520.82 = 609,209.53 : x
2. Step 2: Convert to fraction form
   1,017,118.17/1,403,520.82 = 609,209.53/x
3. Step 3: Cross multiply
   1,017,118.17x = 1,403,520.82 × 609,209.53
4. Step 4: Simplify right side
   1,017,118.17x = 855,038,254,065.59
5. Step 5: Solve for x
   x = 855,038,254,065.59/1,017,118.17
6. Step 6: Final answer
   x = 840,647.90