Finding the Fourth Proportional to 1,154.72, 1,592.72 and 761.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,154.72 : 1,592.72 = 761.76 : x
2. Step 2: Convert to fraction form
   1,154.72/1,592.72 = 761.76/x
3. Step 3: Cross multiply
   1,154.72x = 1,592.72 × 761.76
4. Step 4: Simplify right side
   1,154.72x = 1,213,270.39
5. Step 5: Solve for x
   x = 1,213,270.39/1,154.72
6. Step 6: Final answer
   x = 1,050.71