Finding the Fourth Proportional to 2,068.79, 2,858.94 and 1,538.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.79 : 2,858.94 = 1,538.46 : x
2. Step 2: Convert to fraction form
   2,068.79/2,858.94 = 1,538.46/x
3. Step 3: Cross multiply
   2,068.79x = 2,858.94 × 1,538.46
4. Step 4: Simplify right side
   2,068.79x = 4,398,364.83
5. Step 5: Solve for x
   x = 4,398,364.83/2,068.79
6. Step 6: Final answer
   x = 2,126.06