Finding the Fourth Proportional to 2,427.18, 3,637.52 and 1,387.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,427.18 : 3,637.52 = 1,387.50 : x
2. Step 2: Convert to fraction form
   2,427.18/3,637.52 = 1,387.50/x
3. Step 3: Cross multiply
   2,427.18x = 3,637.52 × 1,387.50
4. Step 4: Simplify right side
   2,427.18x = 5,047,059
5. Step 5: Solve for x
   x = 5,047,059/2,427.18
6. Step 6: Final answer
   x = 2,079.39