Finding the Fourth Proportional to 1,499.50, 2,250.62 and 769.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.50 : 2,250.62 = 769.58 : x
2. Step 2: Convert to fraction form
   1,499.50/2,250.62 = 769.58/x
3. Step 3: Cross multiply
   1,499.50x = 2,250.62 × 769.58
4. Step 4: Simplify right side
   1,499.50x = 1,732,032.14
5. Step 5: Solve for x
   x = 1,732,032.14/1,499.50
6. Step 6: Final answer
   x = 1,155.07