Finding the Fourth Proportional to 1,106.36, 1,526.82 and 664.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,106.36 : 1,526.82 = 664.46 : x
2. Step 2: Convert to fraction form
   1,106.36/1,526.82 = 664.46/x
3. Step 3: Cross multiply
   1,106.36x = 1,526.82 × 664.46
4. Step 4: Simplify right side
   1,106.36x = 1,014,510.82
5. Step 5: Solve for x
   x = 1,014,510.82/1,106.36
6. Step 6: Final answer
   x = 916.98