Finding the Fourth Proportional to 3,781.99, 5,657.72 and 3,388.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,781.99 : 5,657.72 = 3,388.10 : x
2. Step 2: Convert to fraction form
   3,781.99/5,657.72 = 3,388.10/x
3. Step 3: Cross multiply
   3,781.99x = 5,657.72 × 3,388.10
4. Step 4: Simplify right side
   3,781.99x = 19,168,952.23
5. Step 5: Solve for x
   x = 19,168,952.23/3,781.99
6. Step 6: Final answer
   x = 5,068.48