Finding the Fourth Proportional to 2,032.79, 2,806.61 and 1,248.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,032.79 : 2,806.61 = 1,248.20 : x
2. Step 2: Convert to fraction form
   2,032.79/2,806.61 = 1,248.20/x
3. Step 3: Cross multiply
   2,032.79x = 2,806.61 × 1,248.20
4. Step 4: Simplify right side
   2,032.79x = 3,503,190.33
5. Step 5: Solve for x
   x = 3,503,190.33/2,032.79
6. Step 6: Final answer
   x = 1,723.34