Finding the Fourth Proportional to 1,789.90, 2,470.60 and 1,160.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.90 : 2,470.60 = 1,160.46 : x
2. Step 2: Convert to fraction form
   1,789.90/2,470.60 = 1,160.46/x
3. Step 3: Cross multiply
   1,789.90x = 2,470.60 × 1,160.46
4. Step 4: Simplify right side
   1,789.90x = 2,867,032.48
5. Step 5: Solve for x
   x = 2,867,032.48/1,789.90
6. Step 6: Final answer
   x = 1,601.79