Finding the Fourth Proportional to 1,430.06, 1,973.46 and 800.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,430.06 : 1,973.46 = 800.69 : x
2. Step 2: Convert to fraction form
   1,430.06/1,973.46 = 800.69/x
3. Step 3: Cross multiply
   1,430.06x = 1,973.46 × 800.69
4. Step 4: Simplify right side
   1,430.06x = 1,580,122.82
5. Step 5: Solve for x
   x = 1,580,122.82/1,430.06
6. Step 6: Final answer
   x = 1,104.94