Finding the Fourth Proportional to 3,720.47, 5,573.52 and 1,869.39

Step by Step Solution

1. Step 1: Write the proportion equation
   3,720.47 : 5,573.52 = 1,869.39 : x
2. Step 2: Convert to fraction form
   3,720.47/5,573.52 = 1,869.39/x
3. Step 3: Cross multiply
   3,720.47x = 5,573.52 × 1,869.39
4. Step 4: Simplify right side
   3,720.47x = 10,419,082.55
5. Step 5: Solve for x
   x = 10,419,082.55/3,720.47
6. Step 6: Final answer
   x = 2,800.48