Finding the Fourth Proportional to 1,789.39, 2,470.50 and 1,458.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.39 : 2,470.50 = 1,458.60 : x
2. Step 2: Convert to fraction form
   1,789.39/2,470.50 = 1,458.60/x
3. Step 3: Cross multiply
   1,789.39x = 2,470.50 × 1,458.60
4. Step 4: Simplify right side
   1,789.39x = 3,603,471.30
5. Step 5: Solve for x
   x = 3,603,471.30/1,789.39
6. Step 6: Final answer
   x = 2,013.80