Finding the Fourth Proportional to 1,251.72, 1,875.42 and 790.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,251.72 : 1,875.42 = 790.56 : x
2. Step 2: Convert to fraction form
   1,251.72/1,875.42 = 790.56/x
3. Step 3: Cross multiply
   1,251.72x = 1,875.42 × 790.56
4. Step 4: Simplify right side
   1,251.72x = 1,482,632.04
5. Step 5: Solve for x
   x = 1,482,632.04/1,251.72
6. Step 6: Final answer
   x = 1,184.48