Finding the Fourth Proportional to 1,855.38, 2,772.82 and 1,488.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,855.38 : 2,772.82 = 1,488.45 : x
2. Step 2: Convert to fraction form
   1,855.38/2,772.82 = 1,488.45/x
3. Step 3: Cross multiply
   1,855.38x = 2,772.82 × 1,488.45
4. Step 4: Simplify right side
   1,855.38x = 4,127,196.49
5. Step 5: Solve for x
   x = 4,127,196.49/1,855.38
6. Step 6: Final answer
   x = 2,224.45