Finding the Fourth Proportional to 1,911.32, 2,863.72 and 1,494.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,911.32 : 2,863.72 = 1,494.70 : x
2. Step 2: Convert to fraction form
   1,911.32/2,863.72 = 1,494.70/x
3. Step 3: Cross multiply
   1,911.32x = 2,863.72 × 1,494.70
4. Step 4: Simplify right side
   1,911.32x = 4,280,383.60
5. Step 5: Solve for x
   x = 4,280,383.60/1,911.32
6. Step 6: Final answer
   x = 2,239.49