Finding the Fourth Proportional to 1,875.30, 2,587.59 and 1,089.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,875.30 : 2,587.59 = 1,089.06 : x
2. Step 2: Convert to fraction form
   1,875.30/2,587.59 = 1,089.06/x
3. Step 3: Cross multiply
   1,875.30x = 2,587.59 × 1,089.06
4. Step 4: Simplify right side
   1,875.30x = 2,818,040.77
5. Step 5: Solve for x
   x = 2,818,040.77/1,875.30
6. Step 6: Final answer
   x = 1,502.71