Finding the Fourth Proportional to 2,192.78, 3,026.14 and 1,248.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,192.78 : 3,026.14 = 1,248.59 : x
2. Step 2: Convert to fraction form
   2,192.78/3,026.14 = 1,248.59/x
3. Step 3: Cross multiply
   2,192.78x = 3,026.14 × 1,248.59
4. Step 4: Simplify right side
   2,192.78x = 3,778,389.89
5. Step 5: Solve for x
   x = 3,778,389.89/2,192.78
6. Step 6: Final answer
   x = 1,723.11