Finding the Fourth Proportional to 1,199.00, 1,654.58 and 667.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,199.00 : 1,654.58 = 667.86 : x
2. Step 2: Convert to fraction form
   1,199.00/1,654.58 = 667.86/x
3. Step 3: Cross multiply
   1,199.00x = 1,654.58 × 667.86
4. Step 4: Simplify right side
   1,199.00x = 1,105,024.46
5. Step 5: Solve for x
   x = 1,105,024.46/1,199.00
6. Step 6: Final answer
   x = 921.62