Finding the Fourth Proportional to 1,488.37, 2,219.46 and 1,384.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.37 : 2,219.46 = 1,384.49 : x
2. Step 2: Convert to fraction form
   1,488.37/2,219.46 = 1,384.49/x
3. Step 3: Cross multiply
   1,488.37x = 2,219.46 × 1,384.49
4. Step 4: Simplify right side
   1,488.37x = 3,072,820.18
5. Step 5: Solve for x
   x = 3,072,820.18/1,488.37
6. Step 6: Final answer
   x = 2,064.55