Finding the Fourth Proportional to 1,875.52, 2,588.04 and 1,089.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,875.52 : 2,588.04 = 1,089.61 : x
2. Step 2: Convert to fraction form
   1,875.52/2,588.04 = 1,089.61/x
3. Step 3: Cross multiply
   1,875.52x = 2,588.04 × 1,089.61
4. Step 4: Simplify right side
   1,875.52x = 2,819,954.26
5. Step 5: Solve for x
   x = 2,819,954.26/1,875.52
6. Step 6: Final answer
   x = 1,503.56