Finding the Fourth Proportional to 2,068.74, 2,854.71 and 1,368.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.74 : 2,854.71 = 1,368.90 : x
2. Step 2: Convert to fraction form
   2,068.74/2,854.71 = 1,368.90/x
3. Step 3: Cross multiply
   2,068.74x = 2,854.71 × 1,368.90
4. Step 4: Simplify right side
   2,068.74x = 3,907,812.52
5. Step 5: Solve for x
   x = 3,907,812.52/2,068.74
6. Step 6: Final answer
   x = 1,888.98