Finding the Fourth Proportional to 1,527.60, 2,288.32 and 704.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,527.60 : 2,288.32 = 704.72 : x
2. Step 2: Convert to fraction form
   1,527.60/2,288.32 = 704.72/x
3. Step 3: Cross multiply
   1,527.60x = 2,288.32 × 704.72
4. Step 4: Simplify right side
   1,527.60x = 1,612,624.87
5. Step 5: Solve for x
   x = 1,612,624.87/1,527.60
6. Step 6: Final answer
   x = 1,055.66