Finding the Fourth Proportional to 2,487.69, 3,726.64 and 1,445.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,487.69 : 3,726.64 = 1,445.50 : x
2. Step 2: Convert to fraction form
   2,487.69/3,726.64 = 1,445.50/x
3. Step 3: Cross multiply
   2,487.69x = 3,726.64 × 1,445.50
4. Step 4: Simplify right side
   2,487.69x = 5,386,875.07
5. Step 5: Solve for x
   x = 5,386,875.07/2,487.69
6. Step 6: Final answer
   x = 2,165.41