Finding the Fourth Proportional to 2,067.16, 3,100.78 and 507.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.16 : 3,100.78 = 507.17 : x
2. Step 2: Convert to fraction form
   2,067.16/3,100.78 = 507.17/x
3. Step 3: Cross multiply
   2,067.16x = 3,100.78 × 507.17
4. Step 4: Simplify right side
   2,067.16x = 1,572,622.59
5. Step 5: Solve for x
   x = 1,572,622.59/2,067.16
6. Step 6: Final answer
   x = 760.76