Finding the Fourth Proportional to 1,637.50, 2,456.52 and 712.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,637.50 : 2,456.52 = 712.81 : x
2. Step 2: Convert to fraction form
   1,637.50/2,456.52 = 712.81/x
3. Step 3: Cross multiply
   1,637.50x = 2,456.52 × 712.81
4. Step 4: Simplify right side
   1,637.50x = 1,751,032.02
5. Step 5: Solve for x
   x = 1,751,032.02/1,637.50
6. Step 6: Final answer
   x = 1,069.33