Finding the Fourth Proportional to 1,875.50, 2,588.18 and 1,089.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,875.50 : 2,588.18 = 1,089.69 : x
2. Step 2: Convert to fraction form
   1,875.50/2,588.18 = 1,089.69/x
3. Step 3: Cross multiply
   1,875.50x = 2,588.18 × 1,089.69
4. Step 4: Simplify right side
   1,875.50x = 2,820,308.42
5. Step 5: Solve for x
   x = 2,820,308.42/1,875.50
6. Step 6: Final answer
   x = 1,503.77