Finding the Fourth Proportional to 1,601,155.50, 2,209,663.71 and 885,763.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601,155.50 : 2,209,663.71 = 885,763.50 : x
2. Step 2: Convert to fraction form
   1,601,155.50/2,209,663.71 = 885,763.50/x
3. Step 3: Cross multiply
   1,601,155.50x = 2,209,663.71 × 885,763.50
4. Step 4: Simplify right side
   1,601,155.50x = 1,957,239,461,592.59
5. Step 5: Solve for x
   x = 1,957,239,461,592.59/1,601,155.50
6. Step 6: Final answer
   x = 1,222,391.87