Finding the Fourth Proportional to 1,665.24, 2,500.72 and 1,377.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.24 : 2,500.72 = 1,377.24 : x
2. Step 2: Convert to fraction form
   1,665.24/2,500.72 = 1,377.24/x
3. Step 3: Cross multiply
   1,665.24x = 2,500.72 × 1,377.24
4. Step 4: Simplify right side
   1,665.24x = 3,444,091.61
5. Step 5: Solve for x
   x = 3,444,091.61/1,665.24
6. Step 6: Final answer
   x = 2,068.23