Finding the Fourth Proportional to 2,700.72, 3,729.11 and 2,112.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,700.72 : 3,729.11 = 2,112.93 : x
2. Step 2: Convert to fraction form
   2,700.72/3,729.11 = 2,112.93/x
3. Step 3: Cross multiply
   2,700.72x = 3,729.11 × 2,112.93
4. Step 4: Simplify right side
   2,700.72x = 7,879,337.83
5. Step 5: Solve for x
   x = 7,879,337.83/2,700.72
6. Step 6: Final answer
   x = 2,917.50