Finding the Fourth Proportional to 2,401.11, 3,312.50 and 1,406.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,401.11 : 3,312.50 = 1,406.43 : x
2. Step 2: Convert to fraction form
   2,401.11/3,312.50 = 1,406.43/x
3. Step 3: Cross multiply
   2,401.11x = 3,312.50 × 1,406.43
4. Step 4: Simplify right side
   2,401.11x = 4,658,792.34
5. Step 5: Solve for x
   x = 4,658,792.34/2,401.11
6. Step 6: Final answer
   x = 1,940.27