Finding the Fourth Proportional to 1,177.55, 1,624.82 and 653.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,177.55 : 1,624.82 = 653.57 : x
2. Step 2: Convert to fraction form
   1,177.55/1,624.82 = 653.57/x
3. Step 3: Cross multiply
   1,177.55x = 1,624.82 × 653.57
4. Step 4: Simplify right side
   1,177.55x = 1,061,922.22
5. Step 5: Solve for x
   x = 1,061,922.22/1,177.55
6. Step 6: Final answer
   x = 901.81