Finding the Fourth Proportional to 1,875.90, 2,588.31 and 1,089.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,875.90 : 2,588.31 = 1,089.48 : x
2. Step 2: Convert to fraction form
   1,875.90/2,588.31 = 1,089.48/x
3. Step 3: Cross multiply
   1,875.90x = 2,588.31 × 1,089.48
4. Step 4: Simplify right side
   1,875.90x = 2,819,911.98
5. Step 5: Solve for x
   x = 2,819,911.98/1,875.90
6. Step 6: Final answer
   x = 1,503.23