Finding the Fourth Proportional to 2,610.85, 3,914.41 and 1,223.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.85 : 3,914.41 = 1,223.42 : x
2. Step 2: Convert to fraction form
   2,610.85/3,914.41 = 1,223.42/x
3. Step 3: Cross multiply
   2,610.85x = 3,914.41 × 1,223.42
4. Step 4: Simplify right side
   2,610.85x = 4,788,967.48
5. Step 5: Solve for x
   x = 4,788,967.48/2,610.85
6. Step 6: Final answer
   x = 1,834.26