Finding the Fourth Proportional to 1,636,755.65, 2,258,792.90 and 911,603.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,636,755.65 : 2,258,792.90 = 911,603.55 : x
2. Step 2: Convert to fraction form
   1,636,755.65/2,258,792.90 = 911,603.55/x
3. Step 3: Cross multiply
   1,636,755.65x = 2,258,792.90 × 911,603.55
4. Step 4: Simplify right side
   1,636,755.65x = 2,059,123,621,796.78
5. Step 5: Solve for x
   x = 2,059,123,621,796.78/1,636,755.65
6. Step 6: Final answer
   x = 1,258,051.94