Finding the Fourth Proportional to 1,156.06, 1,595.37 and 742.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156.06 : 1,595.37 = 742.78 : x
2. Step 2: Convert to fraction form
   1,156.06/1,595.37 = 742.78/x
3. Step 3: Cross multiply
   1,156.06x = 1,595.37 × 742.78
4. Step 4: Simplify right side
   1,156.06x = 1,185,010.13
5. Step 5: Solve for x
   x = 1,185,010.13/1,156.06
6. Step 6: Final answer
   x = 1,025.04