Finding the Fourth Proportional to 1,550.17, 2,139.59 and 887.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,550.17 : 2,139.59 = 887.41 : x
2. Step 2: Convert to fraction form
   1,550.17/2,139.59 = 887.41/x
3. Step 3: Cross multiply
   1,550.17x = 2,139.59 × 887.41
4. Step 4: Simplify right side
   1,550.17x = 1,898,693.56
5. Step 5: Solve for x
   x = 1,898,693.56/1,550.17
6. Step 6: Final answer
   x = 1,224.83