Finding the Fourth Proportional to 2,549.20, 3,517.60 and 1,429.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,549.20 : 3,517.60 = 1,429.99 : x
2. Step 2: Convert to fraction form
   2,549.20/3,517.60 = 1,429.99/x
3. Step 3: Cross multiply
   2,549.20x = 3,517.60 × 1,429.99
4. Step 4: Simplify right side
   2,549.20x = 5,030,132.82
5. Step 5: Solve for x
   x = 5,030,132.82/2,549.20
6. Step 6: Final answer
   x = 1,973.22