Finding the Fourth Proportional to 2,862.56, 4,293.78 and 914.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,862.56 : 4,293.78 = 914.74 : x
2. Step 2: Convert to fraction form
   2,862.56/4,293.78 = 914.74/x
3. Step 3: Cross multiply
   2,862.56x = 4,293.78 × 914.74
4. Step 4: Simplify right side
   2,862.56x = 3,927,692.32
5. Step 5: Solve for x
   x = 3,927,692.32/2,862.56
6. Step 6: Final answer
   x = 1,372.09