Finding the Fourth Proportional to 1,430.57, 1,974.17 and 801.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,430.57 : 1,974.17 = 801.14 : x
2. Step 2: Convert to fraction form
   1,430.57/1,974.17 = 801.14/x
3. Step 3: Cross multiply
   1,430.57x = 1,974.17 × 801.14
4. Step 4: Simplify right side
   1,430.57x = 1,581,582.55
5. Step 5: Solve for x
   x = 1,581,582.55/1,430.57
6. Step 6: Final answer
   x = 1,105.56