Finding the Fourth Proportional to 2,479.55, 3,718.98 and 836.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479.55 : 3,718.98 = 836.19 : x
2. Step 2: Convert to fraction form
   2,479.55/3,718.98 = 836.19/x
3. Step 3: Cross multiply
   2,479.55x = 3,718.98 × 836.19
4. Step 4: Simplify right side
   2,479.55x = 3,109,773.89
5. Step 5: Solve for x
   x = 3,109,773.89/2,479.55
6. Step 6: Final answer
   x = 1,254.17