Finding the Fourth Proportional to 3,642.72, 5,027.40 and 2,070.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,642.72 : 5,027.40 = 2,070.96 : x
2. Step 2: Convert to fraction form
   3,642.72/5,027.40 = 2,070.96/x
3. Step 3: Cross multiply
   3,642.72x = 5,027.40 × 2,070.96
4. Step 4: Simplify right side
   3,642.72x = 10,411,544.30
5. Step 5: Solve for x
   x = 10,411,544.30/3,642.72
6. Step 6: Final answer
   x = 2,858.18