Finding the Fourth Proportional to 2,123.44, 2,930.38 and 1,284.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.44 : 2,930.38 = 1,284.14 : x
2. Step 2: Convert to fraction form
   2,123.44/2,930.38 = 1,284.14/x
3. Step 3: Cross multiply
   2,123.44x = 2,930.38 × 1,284.14
4. Step 4: Simplify right side
   2,123.44x = 3,763,018.17
5. Step 5: Solve for x
   x = 3,763,018.17/2,123.44
6. Step 6: Final answer
   x = 1,772.13