Finding the Fourth Proportional to 2,659.34, 3,989.06 and 1,272.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,659.34 : 3,989.06 = 1,272.83 : x
2. Step 2: Convert to fraction form
   2,659.34/3,989.06 = 1,272.83/x
3. Step 3: Cross multiply
   2,659.34x = 3,989.06 × 1,272.83
4. Step 4: Simplify right side
   2,659.34x = 5,077,368.93
5. Step 5: Solve for x
   x = 5,077,368.93/2,659.34
6. Step 6: Final answer
   x = 1,909.26