Finding the Fourth Proportional to 1,637.51, 2,456.37 and 1,248.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,637.51 : 2,456.37 = 1,248.12 : x
2. Step 2: Convert to fraction form
   1,637.51/2,456.37 = 1,248.12/x
3. Step 3: Cross multiply
   1,637.51x = 2,456.37 × 1,248.12
4. Step 4: Simplify right side
   1,637.51x = 3,065,844.52
5. Step 5: Solve for x
   x = 3,065,844.52/1,637.51
6. Step 6: Final answer
   x = 1,872.27