Finding the Fourth Proportional to 2,401.20, 3,314.91 and 1,457.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,401.20 : 3,314.91 = 1,457.57 : x
2. Step 2: Convert to fraction form
   2,401.20/3,314.91 = 1,457.57/x
3. Step 3: Cross multiply
   2,401.20x = 3,314.91 × 1,457.57
4. Step 4: Simplify right side
   2,401.20x = 4,831,696.79
5. Step 5: Solve for x
   x = 4,831,696.79/2,401.20
6. Step 6: Final answer
   x = 2,012.20