Finding the Fourth Proportional to 2,863.18, 4,292.34 and 914.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,863.18 : 4,292.34 = 914.32 : x
2. Step 2: Convert to fraction form
   2,863.18/4,292.34 = 914.32/x
3. Step 3: Cross multiply
   2,863.18x = 4,292.34 × 914.32
4. Step 4: Simplify right side
   2,863.18x = 3,924,572.31
5. Step 5: Solve for x
   x = 3,924,572.31/2,863.18
6. Step 6: Final answer
   x = 1,370.70