Finding the Fourth Proportional to 1,199.02, 1,654.45 and 667.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,199.02 : 1,654.45 = 667.83 : x
2. Step 2: Convert to fraction form
   1,199.02/1,654.45 = 667.83/x
3. Step 3: Cross multiply
   1,199.02x = 1,654.45 × 667.83
4. Step 4: Simplify right side
   1,199.02x = 1,104,891.34
5. Step 5: Solve for x
   x = 1,104,891.34/1,199.02
6. Step 6: Final answer
   x = 921.50