Finding the Fourth Proportional to 1,434.08, 1,976.94 and 1,013.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434.08 : 1,976.94 = 1,013.12 : x
2. Step 2: Convert to fraction form
   1,434.08/1,976.94 = 1,013.12/x
3. Step 3: Cross multiply
   1,434.08x = 1,976.94 × 1,013.12
4. Step 4: Simplify right side
   1,434.08x = 2,002,877.45
5. Step 5: Solve for x
   x = 2,002,877.45/1,434.08
6. Step 6: Final answer
   x = 1,396.63