Finding the Fourth Proportional to 2,385.59, 3,294.50 and 1,641.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385.59 : 3,294.50 = 1,641.42 : x
2. Step 2: Convert to fraction form
   2,385.59/3,294.50 = 1,641.42/x
3. Step 3: Cross multiply
   2,385.59x = 3,294.50 × 1,641.42
4. Step 4: Simplify right side
   2,385.59x = 5,407,649.98
5. Step 5: Solve for x
   x = 5,407,649.98/2,385.59
6. Step 6: Final answer
   x = 2,266.80