Finding the Fourth Proportional to 3,091.83, 4,268.69 and 2,031.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,091.83 : 4,268.69 = 2,031.47 : x
2. Step 2: Convert to fraction form
   3,091.83/4,268.69 = 2,031.47/x
3. Step 3: Cross multiply
   3,091.83x = 4,268.69 × 2,031.47
4. Step 4: Simplify right side
   3,091.83x = 8,671,715.67
5. Step 5: Solve for x
   x = 8,671,715.67/3,091.83
6. Step 6: Final answer
   x = 2,804.72