Finding the Fourth Proportional to 2,068.83, 3,100.06 and 1,287.66

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.83 : 3,100.06 = 1,287.66 : x
2. Step 2: Convert to fraction form
   2,068.83/3,100.06 = 1,287.66/x
3. Step 3: Cross multiply
   2,068.83x = 3,100.06 × 1,287.66
4. Step 4: Simplify right side
   2,068.83x = 3,991,820.04
5. Step 5: Solve for x
   x = 3,991,820.04/2,068.83
6. Step 6: Final answer
   x = 1,929.51