Finding the Fourth Proportional to 1,875.72, 2,588.59 and 1,129.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,875.72 : 2,588.59 = 1,129.92 : x
2. Step 2: Convert to fraction form
   1,875.72/2,588.59 = 1,129.92/x
3. Step 3: Cross multiply
   1,875.72x = 2,588.59 × 1,129.92
4. Step 4: Simplify right side
   1,875.72x = 2,924,899.61
5. Step 5: Solve for x
   x = 2,924,899.61/1,875.72
6. Step 6: Final answer
   x = 1,559.35