Finding the Fourth Proportional to 1,587,123.83, 2,190,373.70 and 898,963.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,587,123.83 : 2,190,373.70 = 898,963.06 : x
2. Step 2: Convert to fraction form
   1,587,123.83/2,190,373.70 = 898,963.06/x
3. Step 3: Cross multiply
   1,587,123.83x = 2,190,373.70 × 898,963.06
4. Step 4: Simplify right side
   1,587,123.83x = 1,969,065,043,895.52
5. Step 5: Solve for x
   x = 1,969,065,043,895.52/1,587,123.83
6. Step 6: Final answer
   x = 1,240,649.92