Finding the Fourth Proportional to 2,002.86, 2,762.91 and 1,256.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,002.86 : 2,762.91 = 1,256.31 : x
2. Step 2: Convert to fraction form
   2,002.86/2,762.91 = 1,256.31/x
3. Step 3: Cross multiply
   2,002.86x = 2,762.91 × 1,256.31
4. Step 4: Simplify right side
   2,002.86x = 3,471,071.46
5. Step 5: Solve for x
   x = 3,471,071.46/2,002.86
6. Step 6: Final answer
   x = 1,733.06