Finding the Fourth Proportional to 5,613.54, 8,419.83 and 1,915.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,613.54 : 8,419.83 = 1,915.86 : x
2. Step 2: Convert to fraction form
   5,613.54/8,419.83 = 1,915.86/x
3. Step 3: Cross multiply
   5,613.54x = 8,419.83 × 1,915.86
4. Step 4: Simplify right side
   5,613.54x = 16,131,215.50
5. Step 5: Solve for x
   x = 16,131,215.50/5,613.54
6. Step 6: Final answer
   x = 2,873.63