Finding the Fourth Proportional to 1,626.48, 2,440.72 and 760.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,626.48 : 2,440.72 = 760.88 : x
2. Step 2: Convert to fraction form
   1,626.48/2,440.72 = 760.88/x
3. Step 3: Cross multiply
   1,626.48x = 2,440.72 × 760.88
4. Step 4: Simplify right side
   1,626.48x = 1,857,095.03
5. Step 5: Solve for x
   x = 1,857,095.03/1,626.48
6. Step 6: Final answer
   x = 1,141.79