Finding the Fourth Proportional to 2,517.01, 3,772.31 and 1,421.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.01 : 3,772.31 = 1,421.99 : x
2. Step 2: Convert to fraction form
   2,517.01/3,772.31 = 1,421.99/x
3. Step 3: Cross multiply
   2,517.01x = 3,772.31 × 1,421.99
4. Step 4: Simplify right side
   2,517.01x = 5,364,171.79
5. Step 5: Solve for x
   x = 5,364,171.79/2,517.01
6. Step 6: Final answer
   x = 2,131.17