Finding the Fourth Proportional to 1,429.88, 1,973.23 and 808.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.88 : 1,973.23 = 808.88 : x
2. Step 2: Convert to fraction form
   1,429.88/1,973.23 = 808.88/x
3. Step 3: Cross multiply
   1,429.88x = 1,973.23 × 808.88
4. Step 4: Simplify right side
   1,429.88x = 1,596,094.39
5. Step 5: Solve for x
   x = 1,596,094.39/1,429.88
6. Step 6: Final answer
   x = 1,116.25