Finding the Fourth Proportional to 1,643.29, 2,462.50 and 1,025.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,643.29 : 2,462.50 = 1,025.46 : x
2. Step 2: Convert to fraction form
   1,643.29/2,462.50 = 1,025.46/x
3. Step 3: Cross multiply
   1,643.29x = 2,462.50 × 1,025.46
4. Step 4: Simplify right side
   1,643.29x = 2,525,196.53
5. Step 5: Solve for x
   x = 2,525,196.53/1,643.29
6. Step 6: Final answer
   x = 1,536.67