Finding the Fourth Proportional to 1,191.00, 1,643.59 and 667.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191.00 : 1,643.59 = 667.04 : x
2. Step 2: Convert to fraction form
   1,191.00/1,643.59 = 667.04/x
3. Step 3: Cross multiply
   1,191.00x = 1,643.59 × 667.04
4. Step 4: Simplify right side
   1,191.00x = 1,096,332.89
5. Step 5: Solve for x
   x = 1,096,332.89/1,191.00
6. Step 6: Final answer
   x = 920.51