Finding the Fourth Proportional to 2,387.52, 3,294.72 and 1,393.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.52 : 3,294.72 = 1,393.38 : x
2. Step 2: Convert to fraction form
   2,387.52/3,294.72 = 1,393.38/x
3. Step 3: Cross multiply
   2,387.52x = 3,294.72 × 1,393.38
4. Step 4: Simplify right side
   2,387.52x = 4,590,796.95
5. Step 5: Solve for x
   x = 4,590,796.95/2,387.52
6. Step 6: Final answer
   x = 1,922.83