Finding the Fourth Proportional to 2,438.72, 3,368.17 and 1,651.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,438.72 : 3,368.17 = 1,651.40 : x
2. Step 2: Convert to fraction form
   2,438.72/3,368.17 = 1,651.40/x
3. Step 3: Cross multiply
   2,438.72x = 3,368.17 × 1,651.40
4. Step 4: Simplify right side
   2,438.72x = 5,562,193.79
5. Step 5: Solve for x
   x = 5,562,193.79/2,438.72
6. Step 6: Final answer
   x = 2,280.79