Finding the Fourth Proportional to 2,558.48, 3,836.10 and 914.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,558.48 : 3,836.10 = 914.72 : x
2. Step 2: Convert to fraction form
   2,558.48/3,836.10 = 914.72/x
3. Step 3: Cross multiply
   2,558.48x = 3,836.10 × 914.72
4. Step 4: Simplify right side
   2,558.48x = 3,508,957.39
5. Step 5: Solve for x
   x = 3,508,957.39/2,558.48
6. Step 6: Final answer
   x = 1,371.50