Finding the Fourth Proportional to 1,124.42, 1,552.35 and 856.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,124.42 : 1,552.35 = 856.76 : x
2. Step 2: Convert to fraction form
   1,124.42/1,552.35 = 856.76/x
3. Step 3: Cross multiply
   1,124.42x = 1,552.35 × 856.76
4. Step 4: Simplify right side
   1,124.42x = 1,329,987.10
5. Step 5: Solve for x
   x = 1,329,987.10/1,124.42
6. Step 6: Final answer
   x = 1,182.82