Finding the Fourth Proportional to 2,265,196.18, 3,398,978.89 and 917,501.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,265,196.18 : 3,398,978.89 = 917,501.17 : x
2. Step 2: Convert to fraction form
   2,265,196.18/3,398,978.89 = 917,501.17/x
3. Step 3: Cross multiply
   2,265,196.18x = 3,398,978.89 × 917,501.17
4. Step 4: Simplify right side
   2,265,196.18x = 3,118,567,091,385.41
5. Step 5: Solve for x
   x = 3,118,567,091,385.41/2,265,196.18
6. Step 6: Final answer
   x = 1,376,731.57