Finding the Fourth Proportional to 2,466.72, 3,700.80 and 1,440

Step by Step Solution

1. Step 1: Write the proportion equation
   2,466.72 : 3,700.80 = 1,440 : x
2. Step 2: Convert to fraction form
   2,466.72/3,700.80 = 1,440/x
3. Step 3: Cross multiply
   2,466.72x = 3,700.80 × 1,440
4. Step 4: Simplify right side
   2,466.72x = 5,329,152
5. Step 5: Solve for x
   x = 5,329,152/2,466.72
6. Step 6: Final answer
   x = 2,160.42