Finding the Fourth Proportional to 2,068.81, 3,100.91 and 898.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.81 : 3,100.91 = 898.43 : x
2. Step 2: Convert to fraction form
   2,068.81/3,100.91 = 898.43/x
3. Step 3: Cross multiply
   2,068.81x = 3,100.91 × 898.43
4. Step 4: Simplify right side
   2,068.81x = 2,785,930.57
5. Step 5: Solve for x
   x = 2,785,930.57/2,068.81
6. Step 6: Final answer
   x = 1,346.64