Finding the Fourth Proportional to 1,524.64, 2,104.72 and 972.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,524.64 : 2,104.72 = 972.96 : x
2. Step 2: Convert to fraction form
   1,524.64/2,104.72 = 972.96/x
3. Step 3: Cross multiply
   1,524.64x = 2,104.72 × 972.96
4. Step 4: Simplify right side
   1,524.64x = 2,047,808.37
5. Step 5: Solve for x
   x = 2,047,808.37/1,524.64
6. Step 6: Final answer
   x = 1,343.14