Finding the Fourth Proportional to 1,762.02, 2,639.25 and 1,143.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,762.02 : 2,639.25 = 1,143.72 : x
2. Step 2: Convert to fraction form
   1,762.02/2,639.25 = 1,143.72/x
3. Step 3: Cross multiply
   1,762.02x = 2,639.25 × 1,143.72
4. Step 4: Simplify right side
   1,762.02x = 3,018,563.01
5. Step 5: Solve for x
   x = 3,018,563.01/1,762.02
6. Step 6: Final answer
   x = 1,713.13