Finding the Fourth Proportional to 1,873.52, 2,585.29 and 1,087.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,873.52 : 2,585.29 = 1,087.61 : x
2. Step 2: Convert to fraction form
   1,873.52/2,585.29 = 1,087.61/x
3. Step 3: Cross multiply
   1,873.52x = 2,585.29 × 1,087.61
4. Step 4: Simplify right side
   1,873.52x = 2,811,781.82
5. Step 5: Solve for x
   x = 2,811,781.82/1,873.52
6. Step 6: Final answer
   x = 1,500.81