Finding the Fourth Proportional to 1,926.74, 2,659.30 and 1,218.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,926.74 : 2,659.30 = 1,218.52 : x
2. Step 2: Convert to fraction form
   1,926.74/2,659.30 = 1,218.52/x
3. Step 3: Cross multiply
   1,926.74x = 2,659.30 × 1,218.52
4. Step 4: Simplify right side
   1,926.74x = 3,240,410.24
5. Step 5: Solve for x
   x = 3,240,410.24/1,926.74
6. Step 6: Final answer
   x = 1,681.81