Finding the Fourth Proportional to 1,923.39, 2,653.41 and 1,177.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,923.39 : 2,653.41 = 1,177.05 : x
2. Step 2: Convert to fraction form
   1,923.39/2,653.41 = 1,177.05/x
3. Step 3: Cross multiply
   1,923.39x = 2,653.41 × 1,177.05
4. Step 4: Simplify right side
   1,923.39x = 3,123,196.24
5. Step 5: Solve for x
   x = 3,123,196.24/1,923.39
6. Step 6: Final answer
   x = 1,623.80