Finding the Fourth Proportional to 2,128.83, 2,937.77 and 1,491.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.83 : 2,937.77 = 1,491.67 : x
2. Step 2: Convert to fraction form
   2,128.83/2,937.77 = 1,491.67/x
3. Step 3: Cross multiply
   2,128.83x = 2,937.77 × 1,491.67
4. Step 4: Simplify right side
   2,128.83x = 4,382,168.66
5. Step 5: Solve for x
   x = 4,382,168.66/2,128.83
6. Step 6: Final answer
   x = 2,058.49