Finding the Fourth Proportional to 1,522.91, 2,273.35 and 1,338.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,522.91 : 2,273.35 = 1,338.39 : x
2. Step 2: Convert to fraction form
   1,522.91/2,273.35 = 1,338.39/x
3. Step 3: Cross multiply
   1,522.91x = 2,273.35 × 1,338.39
4. Step 4: Simplify right side
   1,522.91x = 3,042,628.91
5. Step 5: Solve for x
   x = 3,042,628.91/1,522.91
6. Step 6: Final answer
   x = 1,997.90