Finding the Fourth Proportional to 1,874.59, 2,587.31 and 1,088.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,874.59 : 2,587.31 = 1,088.89 : x
2. Step 2: Convert to fraction form
   1,874.59/2,587.31 = 1,088.89/x
3. Step 3: Cross multiply
   1,874.59x = 2,587.31 × 1,088.89
4. Step 4: Simplify right side
   1,874.59x = 2,817,290.54
5. Step 5: Solve for x
   x = 2,817,290.54/1,874.59
6. Step 6: Final answer
   x = 1,502.88