Finding the Fourth Proportional to 1,922.69, 2,653.52 and 1,177.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,922.69 : 2,653.52 = 1,177.15 : x
2. Step 2: Convert to fraction form
   1,922.69/2,653.52 = 1,177.15/x
3. Step 3: Cross multiply
   1,922.69x = 2,653.52 × 1,177.15
4. Step 4: Simplify right side
   1,922.69x = 3,123,591.07
5. Step 5: Solve for x
   x = 3,123,591.07/1,922.69
6. Step 6: Final answer
   x = 1,624.59