Finding the Fourth Proportional to 1,156.68, 1,594.52 and 920.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156.68 : 1,594.52 = 920.72 : x
2. Step 2: Convert to fraction form
   1,156.68/1,594.52 = 920.72/x
3. Step 3: Cross multiply
   1,156.68x = 1,594.52 × 920.72
4. Step 4: Simplify right side
   1,156.68x = 1,468,109.29
5. Step 5: Solve for x
   x = 1,468,109.29/1,156.68
6. Step 6: Final answer
   x = 1,269.24