Finding the Fourth Proportional to 1,773.63, 2,658.63 and 800.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,773.63 : 2,658.63 = 800.42 : x
2. Step 2: Convert to fraction form
   1,773.63/2,658.63 = 800.42/x
3. Step 3: Cross multiply
   1,773.63x = 2,658.63 × 800.42
4. Step 4: Simplify right side
   1,773.63x = 2,128,007.33
5. Step 5: Solve for x
   x = 2,128,007.33/1,773.63
6. Step 6: Final answer
   x = 1,199.80