Finding the Fourth Proportional to 1,526.64, 2,105.76 and 936.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,526.64 : 2,105.76 = 936.96 : x
2. Step 2: Convert to fraction form
   1,526.64/2,105.76 = 936.96/x
3. Step 3: Cross multiply
   1,526.64x = 2,105.76 × 936.96
4. Step 4: Simplify right side
   1,526.64x = 1,973,012.89
5. Step 5: Solve for x
   x = 1,973,012.89/1,526.64
6. Step 6: Final answer
   x = 1,292.39