Finding the Fourth Proportional to 1,773.28, 2,447.49 and 1,065.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,773.28 : 2,447.49 = 1,065.15 : x
2. Step 2: Convert to fraction form
   1,773.28/2,447.49 = 1,065.15/x
3. Step 3: Cross multiply
   1,773.28x = 2,447.49 × 1,065.15
4. Step 4: Simplify right side
   1,773.28x = 2,606,957.15
5. Step 5: Solve for x
   x = 2,606,957.15/1,773.28
6. Step 6: Final answer
   x = 1,470.13