Finding the Fourth Proportional to 1,550.58, 2,140.01 and 887.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,550.58 : 2,140.01 = 887.69 : x
2. Step 2: Convert to fraction form
   1,550.58/2,140.01 = 887.69/x
3. Step 3: Cross multiply
   1,550.58x = 2,140.01 × 887.69
4. Step 4: Simplify right side
   1,550.58x = 1,899,665.48
5. Step 5: Solve for x
   x = 1,899,665.48/1,550.58
6. Step 6: Final answer
   x = 1,225.13