Finding the Fourth Proportional to 6,421.78, 9,631.89 and 1,741.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,421.78 : 9,631.89 = 1,741.50 : x
2. Step 2: Convert to fraction form
   6,421.78/9,631.89 = 1,741.50/x
3. Step 3: Cross multiply
   6,421.78x = 9,631.89 × 1,741.50
4. Step 4: Simplify right side
   6,421.78x = 16,773,906.85
5. Step 5: Solve for x
   x = 16,773,906.85/6,421.78
6. Step 6: Final answer
   x = 2,612.03