Finding the Fourth Proportional to 2,737.12, 3,784.18 and 2,109.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,737.12 : 3,784.18 = 2,109.72 : x
2. Step 2: Convert to fraction form
   2,737.12/3,784.18 = 2,109.72/x
3. Step 3: Cross multiply
   2,737.12x = 3,784.18 × 2,109.72
4. Step 4: Simplify right side
   2,737.12x = 7,983,560.23
5. Step 5: Solve for x
   x = 7,983,560.23/2,737.12
6. Step 6: Final answer
   x = 2,916.77