Finding the Fourth Proportional to 1,384.88, 1,912.55 and 1,034.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384.88 : 1,912.55 = 1,034.96 : x
2. Step 2: Convert to fraction form
   1,384.88/1,912.55 = 1,034.96/x
3. Step 3: Cross multiply
   1,384.88x = 1,912.55 × 1,034.96
4. Step 4: Simplify right side
   1,384.88x = 1,979,398.01
5. Step 5: Solve for x
   x = 1,979,398.01/1,384.88
6. Step 6: Final answer
   x = 1,429.30