Finding the Fourth Proportional to 2,139.50, 3,209.38 and 600.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139.50 : 3,209.38 = 600.62 : x
2. Step 2: Convert to fraction form
   2,139.50/3,209.38 = 600.62/x
3. Step 3: Cross multiply
   2,139.50x = 3,209.38 × 600.62
4. Step 4: Simplify right side
   2,139.50x = 1,927,617.82
5. Step 5: Solve for x
   x = 1,927,617.82/2,139.50
6. Step 6: Final answer
   x = 900.97