Finding the Fourth Proportional to 1,393.34, 2,088.18 and 1,043.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,393.34 : 2,088.18 = 1,043.92 : x
2. Step 2: Convert to fraction form
   1,393.34/2,088.18 = 1,043.92/x
3. Step 3: Cross multiply
   1,393.34x = 2,088.18 × 1,043.92
4. Step 4: Simplify right side
   1,393.34x = 2,179,895.48
5. Step 5: Solve for x
   x = 2,179,895.48/1,393.34
6. Step 6: Final answer
   x = 1,564.52