Finding the Fourth Proportional to 1,177.20, 1,624.59 and 653.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,177.20 : 1,624.59 = 653.27 : x
2. Step 2: Convert to fraction form
   1,177.20/1,624.59 = 653.27/x
3. Step 3: Cross multiply
   1,177.20x = 1,624.59 × 653.27
4. Step 4: Simplify right side
   1,177.20x = 1,061,287.79
5. Step 5: Solve for x
   x = 1,061,287.79/1,177.20
6. Step 6: Final answer
   x = 901.54