Finding the Fourth Proportional to 3,773.78, 5,658.60 and 1,308.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,773.78 : 5,658.60 = 1,308.38 : x
2. Step 2: Convert to fraction form
   3,773.78/5,658.60 = 1,308.38/x
3. Step 3: Cross multiply
   3,773.78x = 5,658.60 × 1,308.38
4. Step 4: Simplify right side
   3,773.78x = 7,403,599.07
5. Step 5: Solve for x
   x = 7,403,599.07/3,773.78
6. Step 6: Final answer
   x = 1,961.85