Finding the Fourth Proportional to 1,875.38, 2,588.35 and 1,089.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,875.38 : 2,588.35 = 1,089.89 : x
2. Step 2: Convert to fraction form
   1,875.38/2,588.35 = 1,089.89/x
3. Step 3: Cross multiply
   1,875.38x = 2,588.35 × 1,089.89
4. Step 4: Simplify right side
   1,875.38x = 2,821,001.12
5. Step 5: Solve for x
   x = 2,821,001.12/1,875.38
6. Step 6: Final answer
   x = 1,504.23