Finding the Fourth Proportional to 1,177.34, 1,624.73 and 653.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,177.34 : 1,624.73 = 653.40 : x
2. Step 2: Convert to fraction form
   1,177.34/1,624.73 = 653.40/x
3. Step 3: Cross multiply
   1,177.34x = 1,624.73 × 653.40
4. Step 4: Simplify right side
   1,177.34x = 1,061,595.32
5. Step 5: Solve for x
   x = 1,061,595.32/1,177.34
6. Step 6: Final answer
   x = 901.69