Finding the Fourth Proportional to 1,433.22, 1,974.42 and 1,013.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.22 : 1,974.42 = 1,013.10 : x
2. Step 2: Convert to fraction form
   1,433.22/1,974.42 = 1,013.10/x
3. Step 3: Cross multiply
   1,433.22x = 1,974.42 × 1,013.10
4. Step 4: Simplify right side
   1,433.22x = 2,000,284.90
5. Step 5: Solve for x
   x = 2,000,284.90/1,433.22
6. Step 6: Final answer
   x = 1,395.66