Finding the Fourth Proportional to 1,875.48, 2,587.86 and 1,089.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,875.48 : 2,587.86 = 1,089.56 : x
2. Step 2: Convert to fraction form
   1,875.48/2,587.86 = 1,089.56/x
3. Step 3: Cross multiply
   1,875.48x = 2,587.86 × 1,089.56
4. Step 4: Simplify right side
   1,875.48x = 2,819,628.74
5. Step 5: Solve for x
   x = 2,819,628.74/1,875.48
6. Step 6: Final answer
   x = 1,503.42