Finding the Fourth Proportional to 1,488.70, 2,228.60 and 1,453.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.70 : 2,228.60 = 1,453.34 : x
2. Step 2: Convert to fraction form
   1,488.70/2,228.60 = 1,453.34/x
3. Step 3: Cross multiply
   1,488.70x = 2,228.60 × 1,453.34
4. Step 4: Simplify right side
   1,488.70x = 3,238,913.52
5. Step 5: Solve for x
   x = 3,238,913.52/1,488.70
6. Step 6: Final answer
   x = 2,175.67