Finding the Fourth Proportional to 1,040.53, 1,434.63 and 760.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040.53 : 1,434.63 = 760.54 : x
2. Step 2: Convert to fraction form
   1,040.53/1,434.63 = 760.54/x
3. Step 3: Cross multiply
   1,040.53x = 1,434.63 × 760.54
4. Step 4: Simplify right side
   1,040.53x = 1,091,093.50
5. Step 5: Solve for x
   x = 1,091,093.50/1,040.53
6. Step 6: Final answer
   x = 1,048.59