Finding the Fourth Proportional to 1,094.01, 1,643.46 and 661.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,094.01 : 1,643.46 = 661.47 : x
2. Step 2: Convert to fraction form
   1,094.01/1,643.46 = 661.47/x
3. Step 3: Cross multiply
   1,094.01x = 1,643.46 × 661.47
4. Step 4: Simplify right side
   1,094.01x = 1,087,099.49
5. Step 5: Solve for x
   x = 1,087,099.49/1,094.01
6. Step 6: Final answer
   x = 993.68