Finding the Fourth Proportional to 1,430.63, 1,974.02 and 801.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,430.63 : 1,974.02 = 801.18 : x
2. Step 2: Convert to fraction form
   1,430.63/1,974.02 = 801.18/x
3. Step 3: Cross multiply
   1,430.63x = 1,974.02 × 801.18
4. Step 4: Simplify right side
   1,430.63x = 1,581,541.34
5. Step 5: Solve for x
   x = 1,581,541.34/1,430.63
6. Step 6: Final answer
   x = 1,105.48