Finding the Fourth Proportional to 1,527.98, 2,288.50 and 972.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,527.98 : 2,288.50 = 972.69 : x
2. Step 2: Convert to fraction form
   1,527.98/2,288.50 = 972.69/x
3. Step 3: Cross multiply
   1,527.98x = 2,288.50 × 972.69
4. Step 4: Simplify right side
   1,527.98x = 2,226,001.07
5. Step 5: Solve for x
   x = 2,226,001.07/1,527.98
6. Step 6: Final answer
   x = 1,456.83