Finding the Fourth Proportional to 5,605.89, 8,409.31 and 1,445.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,605.89 : 8,409.31 = 1,445.86 : x
2. Step 2: Convert to fraction form
   5,605.89/8,409.31 = 1,445.86/x
3. Step 3: Cross multiply
   5,605.89x = 8,409.31 × 1,445.86
4. Step 4: Simplify right side
   5,605.89x = 12,158,642.91
5. Step 5: Solve for x
   x = 12,158,642.91/5,605.89
6. Step 6: Final answer
   x = 2,168.91