Finding the Fourth Proportional to 2,068.93, 2,855.69 and 1,218.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.93 : 2,855.69 = 1,218.93 : x
2. Step 2: Convert to fraction form
   2,068.93/2,855.69 = 1,218.93/x
3. Step 3: Cross multiply
   2,068.93x = 2,855.69 × 1,218.93
4. Step 4: Simplify right side
   2,068.93x = 3,480,886.21
5. Step 5: Solve for x
   x = 3,480,886.21/2,068.93
6. Step 6: Final answer
   x = 1,682.46