Finding the Fourth Proportional to 1,065.83, 1,472.38 and 1,057.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065.83 : 1,472.38 = 1,057.59 : x
2. Step 2: Convert to fraction form
   1,065.83/1,472.38 = 1,057.59/x
3. Step 3: Cross multiply
   1,065.83x = 1,472.38 × 1,057.59
4. Step 4: Simplify right side
   1,065.83x = 1,557,171.72
5. Step 5: Solve for x
   x = 1,557,171.72/1,065.83
6. Step 6: Final answer
   x = 1,461.00