Finding the Fourth Proportional to 1,923.98, 2,655.06 and 1,138.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,923.98 : 2,655.06 = 1,138.22 : x
2. Step 2: Convert to fraction form
   1,923.98/2,655.06 = 1,138.22/x
3. Step 3: Cross multiply
   1,923.98x = 2,655.06 × 1,138.22
4. Step 4: Simplify right side
   1,923.98x = 3,022,042.39
5. Step 5: Solve for x
   x = 3,022,042.39/1,923.98
6. Step 6: Final answer
   x = 1,570.72