Finding the Fourth Proportional to 2,991.16, 4,128.32 and 1,732.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,991.16 : 4,128.32 = 1,732.01 : x
2. Step 2: Convert to fraction form
   2,991.16/4,128.32 = 1,732.01/x
3. Step 3: Cross multiply
   2,991.16x = 4,128.32 × 1,732.01
4. Step 4: Simplify right side
   2,991.16x = 7,150,291.52
5. Step 5: Solve for x
   x = 7,150,291.52/2,991.16
6. Step 6: Final answer
   x = 2,390.47