Finding the Fourth Proportional to 2,128.83, 3,191.09 and 1,348.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.83 : 3,191.09 = 1,348.59 : x
2. Step 2: Convert to fraction form
   2,128.83/3,191.09 = 1,348.59/x
3. Step 3: Cross multiply
   2,128.83x = 3,191.09 × 1,348.59
4. Step 4: Simplify right side
   2,128.83x = 4,303,465.32
5. Step 5: Solve for x
   x = 4,303,465.32/2,128.83
6. Step 6: Final answer
   x = 2,021.52