Finding the Fourth Proportional to 2,558.06, 3,836.15 and 914.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,558.06 : 3,836.15 = 914.16 : x
2. Step 2: Convert to fraction form
   2,558.06/3,836.15 = 914.16/x
3. Step 3: Cross multiply
   2,558.06x = 3,836.15 × 914.16
4. Step 4: Simplify right side
   2,558.06x = 3,506,854.88
5. Step 5: Solve for x
   x = 3,506,854.88/2,558.06
6. Step 6: Final answer
   x = 1,370.90