Finding the Fourth Proportional to 2,276.84, 3,142.27 and 1,393.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,276.84 : 3,142.27 = 1,393.23 : x
2. Step 2: Convert to fraction form
   2,276.84/3,142.27 = 1,393.23/x
3. Step 3: Cross multiply
   2,276.84x = 3,142.27 × 1,393.23
4. Step 4: Simplify right side
   2,276.84x = 4,377,904.83
5. Step 5: Solve for x
   x = 4,377,904.83/2,276.84
6. Step 6: Final answer
   x = 1,922.80