Finding the Fourth Proportional to 1,488.84, 2,244.68 and 1,388.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.84 : 2,244.68 = 1,388.46 : x
2. Step 2: Convert to fraction form
   1,488.84/2,244.68 = 1,388.46/x
3. Step 3: Cross multiply
   1,488.84x = 2,244.68 × 1,388.46
4. Step 4: Simplify right side
   1,488.84x = 3,116,648.39
5. Step 5: Solve for x
   x = 3,116,648.39/1,488.84
6. Step 6: Final answer
   x = 2,093.34