Finding the Fourth Proportional to 2,337.78, 3,507.10 and 671.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,337.78 : 3,507.10 = 671.83 : x
2. Step 2: Convert to fraction form
   2,337.78/3,507.10 = 671.83/x
3. Step 3: Cross multiply
   2,337.78x = 3,507.10 × 671.83
4. Step 4: Simplify right side
   2,337.78x = 2,356,164.55
5. Step 5: Solve for x
   x = 2,356,164.55/2,337.78
6. Step 6: Final answer
   x = 1,007.86