Finding the Fourth Proportional to 3,613.83, 5,421.15 and 1,422.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,613.83 : 5,421.15 = 1,422.27 : x
2. Step 2: Convert to fraction form
   3,613.83/5,421.15 = 1,422.27/x
3. Step 3: Cross multiply
   3,613.83x = 5,421.15 × 1,422.27
4. Step 4: Simplify right side
   3,613.83x = 7,710,331.90
5. Step 5: Solve for x
   x = 7,710,331.90/3,613.83
6. Step 6: Final answer
   x = 2,133.56