Finding the Fourth Proportional to 1,698.48, 2,342.82 and 1,227.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,698.48 : 2,342.82 = 1,227.07 : x
2. Step 2: Convert to fraction form
   1,698.48/2,342.82 = 1,227.07/x
3. Step 3: Cross multiply
   1,698.48x = 2,342.82 × 1,227.07
4. Step 4: Simplify right side
   1,698.48x = 2,874,807.27
5. Step 5: Solve for x
   x = 2,874,807.27/1,698.48
6. Step 6: Final answer
   x = 1,692.58