Finding the Fourth Proportional to 1,358.99, 1,875.35 and 769.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,358.99 : 1,875.35 = 769.53 : x
2. Step 2: Convert to fraction form
   1,358.99/1,875.35 = 769.53/x
3. Step 3: Cross multiply
   1,358.99x = 1,875.35 × 769.53
4. Step 4: Simplify right side
   1,358.99x = 1,443,134.24
5. Step 5: Solve for x
   x = 1,443,134.24/1,358.99
6. Step 6: Final answer
   x = 1,061.92