Finding the Fourth Proportional to 2,002.42, 2,762.61 and 1,256.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,002.42 : 2,762.61 = 1,256.11 : x
2. Step 2: Convert to fraction form
   2,002.42/2,762.61 = 1,256.11/x
3. Step 3: Cross multiply
   2,002.42x = 2,762.61 × 1,256.11
4. Step 4: Simplify right side
   2,002.42x = 3,470,130.43
5. Step 5: Solve for x
   x = 3,470,130.43/2,002.42
6. Step 6: Final answer
   x = 1,732.97