Finding the Fourth Proportional to 1,245.74, 1,719.24 and 748.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,245.74 : 1,719.24 = 748.52 : x
2. Step 2: Convert to fraction form
   1,245.74/1,719.24 = 748.52/x
3. Step 3: Cross multiply
   1,245.74x = 1,719.24 × 748.52
4. Step 4: Simplify right side
   1,245.74x = 1,286,885.52
5. Step 5: Solve for x
   x = 1,286,885.52/1,245.74
6. Step 6: Final answer
   x = 1,033.03