Finding the Fourth Proportional to 1,156.72, 1,595.56 and 757.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156.72 : 1,595.56 = 757.74 : x
2. Step 2: Convert to fraction form
   1,156.72/1,595.56 = 757.74/x
3. Step 3: Cross multiply
   1,156.72x = 1,595.56 × 757.74
4. Step 4: Simplify right side
   1,156.72x = 1,209,019.63
5. Step 5: Solve for x
   x = 1,209,019.63/1,156.72
6. Step 6: Final answer
   x = 1,045.21