Finding the Fourth Proportional to 2,393.76, 3,590.68 and 854.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,393.76 : 3,590.68 = 854.72 : x
2. Step 2: Convert to fraction form
   2,393.76/3,590.68 = 854.72/x
3. Step 3: Cross multiply
   2,393.76x = 3,590.68 × 854.72
4. Step 4: Simplify right side
   2,393.76x = 3,069,026.01
5. Step 5: Solve for x
   x = 3,069,026.01/2,393.76
6. Step 6: Final answer
   x = 1,282.09