Finding the Fourth Proportional to 2,862.80, 4,294.72 and 914.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,862.80 : 4,294.72 = 914.56 : x
2. Step 2: Convert to fraction form
   2,862.80/4,294.72 = 914.56/x
3. Step 3: Cross multiply
   2,862.80x = 4,294.72 × 914.56
4. Step 4: Simplify right side
   2,862.80x = 3,927,779.12
5. Step 5: Solve for x
   x = 3,927,779.12/2,862.80
6. Step 6: Final answer
   x = 1,372.01