Finding the Fourth Proportional to 1,166.67, 1,749.78 and 436.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,166.67 : 1,749.78 = 436.01 : x
2. Step 2: Convert to fraction form
   1,166.67/1,749.78 = 436.01/x
3. Step 3: Cross multiply
   1,166.67x = 1,749.78 × 436.01
4. Step 4: Simplify right side
   1,166.67x = 762,912.83
5. Step 5: Solve for x
   x = 762,912.83/1,166.67
6. Step 6: Final answer
   x = 653.92