Finding the Fourth Proportional to 3,749.36, 5,174.15 and 2,070.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,749.36 : 5,174.15 = 2,070.72 : x
2. Step 2: Convert to fraction form
   3,749.36/5,174.15 = 2,070.72/x
3. Step 3: Cross multiply
   3,749.36x = 5,174.15 × 2,070.72
4. Step 4: Simplify right side
   3,749.36x = 10,714,205.53
5. Step 5: Solve for x
   x = 10,714,205.53/3,749.36
6. Step 6: Final answer
   x = 2,857.61