Finding the Fourth Proportional to 3,813.54, 5,694.93 and 3,772.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,813.54 : 5,694.93 = 3,772.31 : x
2. Step 2: Convert to fraction form
   3,813.54/5,694.93 = 3,772.31/x
3. Step 3: Cross multiply
   3,813.54x = 5,694.93 × 3,772.31
4. Step 4: Simplify right side
   3,813.54x = 21,483,012.91
5. Step 5: Solve for x
   x = 21,483,012.91/3,813.54
6. Step 6: Final answer
   x = 5,633.35