Finding the Fourth Proportional to 5,641.83, 8,457.22 and 2,355.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,641.83 : 8,457.22 = 2,355.86 : x
2. Step 2: Convert to fraction form
   5,641.83/8,457.22 = 2,355.86/x
3. Step 3: Cross multiply
   5,641.83x = 8,457.22 × 2,355.86
4. Step 4: Simplify right side
   5,641.83x = 19,924,050.40
5. Step 5: Solve for x
   x = 19,924,050.40/5,641.83
6. Step 6: Final answer
   x = 3,531.49