Finding the Fourth Proportional to 1,430.04, 1,973.46 and 800.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,430.04 : 1,973.46 = 800.60 : x
2. Step 2: Convert to fraction form
   1,430.04/1,973.46 = 800.60/x
3. Step 3: Cross multiply
   1,430.04x = 1,973.46 × 800.60
4. Step 4: Simplify right side
   1,430.04x = 1,579,942.21
5. Step 5: Solve for x
   x = 1,579,942.21/1,430.04
6. Step 6: Final answer
   x = 1,104.82