Finding the Fourth Proportional to 1,923.20, 2,654.56 and 1,137.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,923.20 : 2,654.56 = 1,137.52 : x
2. Step 2: Convert to fraction form
   1,923.20/2,654.56 = 1,137.52/x
3. Step 3: Cross multiply
   1,923.20x = 2,654.56 × 1,137.52
4. Step 4: Simplify right side
   1,923.20x = 3,019,615.09
5. Step 5: Solve for x
   x = 3,019,615.09/1,923.20
6. Step 6: Final answer
   x = 1,570.10