Finding the Fourth Proportional to 1,043.86, 1,440.20 and 601.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,043.86 : 1,440.20 = 601.50 : x
2. Step 2: Convert to fraction form
   1,043.86/1,440.20 = 601.50/x
3. Step 3: Cross multiply
   1,043.86x = 1,440.20 × 601.50
4. Step 4: Simplify right side
   1,043.86x = 866,280.30
5. Step 5: Solve for x
   x = 866,280.30/1,043.86
6. Step 6: Final answer
   x = 829.88