Finding the Fourth Proportional to 3,847.02, 5,780.37 and 3,739.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,847.02 : 5,780.37 = 3,739.98 : x
2. Step 2: Convert to fraction form
   3,847.02/5,780.37 = 3,739.98/x
3. Step 3: Cross multiply
   3,847.02x = 5,780.37 × 3,739.98
4. Step 4: Simplify right side
   3,847.02x = 21,618,468.19
5. Step 5: Solve for x
   x = 21,618,468.19/3,847.02
6. Step 6: Final answer
   x = 5,619.54