Finding the Fourth Proportional to 3,756.16, 5,629.38 and 1,807.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,756.16 : 5,629.38 = 1,807.30 : x
2. Step 2: Convert to fraction form
   3,756.16/5,629.38 = 1,807.30/x
3. Step 3: Cross multiply
   3,756.16x = 5,629.38 × 1,807.30
4. Step 4: Simplify right side
   3,756.16x = 10,173,978.47
5. Step 5: Solve for x
   x = 10,173,978.47/3,756.16
6. Step 6: Final answer
   x = 2,708.61