Finding the Fourth Proportional to 2,621.96, 3,934.23 and 1,235.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.96 : 3,934.23 = 1,235.42 : x
2. Step 2: Convert to fraction form
   2,621.96/3,934.23 = 1,235.42/x
3. Step 3: Cross multiply
   2,621.96x = 3,934.23 × 1,235.42
4. Step 4: Simplify right side
   2,621.96x = 4,860,426.43
5. Step 5: Solve for x
   x = 4,860,426.43/2,621.96
6. Step 6: Final answer
   x = 1,853.74