Finding the Fourth Proportional to 2,128.72, 2,937.46 and 1,184.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.72 : 2,937.46 = 1,184.44 : x
2. Step 2: Convert to fraction form
   2,128.72/2,937.46 = 1,184.44/x
3. Step 3: Cross multiply
   2,128.72x = 2,937.46 × 1,184.44
4. Step 4: Simplify right side
   2,128.72x = 3,479,245.12
5. Step 5: Solve for x
   x = 3,479,245.12/2,128.72
6. Step 6: Final answer
   x = 1,634.43