Finding the Fourth Proportional to 1,784.38, 2,672.66 and 1,472.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,784.38 : 2,672.66 = 1,472.72 : x
2. Step 2: Convert to fraction form
   1,784.38/2,672.66 = 1,472.72/x
3. Step 3: Cross multiply
   1,784.38x = 2,672.66 × 1,472.72
4. Step 4: Simplify right side
   1,784.38x = 3,936,079.84
5. Step 5: Solve for x
   x = 3,936,079.84/1,784.38
6. Step 6: Final answer
   x = 2,205.85