Finding the Fourth Proportional to 2,520.31, 3,477.96 and 1,401.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.31 : 3,477.96 = 1,401.22 : x
2. Step 2: Convert to fraction form
   2,520.31/3,477.96 = 1,401.22/x
3. Step 3: Cross multiply
   2,520.31x = 3,477.96 × 1,401.22
4. Step 4: Simplify right side
   2,520.31x = 4,873,387.11
5. Step 5: Solve for x
   x = 4,873,387.11/2,520.31
6. Step 6: Final answer
   x = 1,933.65