Finding the Fourth Proportional to 1,399.08, 1,929.65 and 951.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399.08 : 1,929.65 = 951.29 : x
2. Step 2: Convert to fraction form
   1,399.08/1,929.65 = 951.29/x
3. Step 3: Cross multiply
   1,399.08x = 1,929.65 × 951.29
4. Step 4: Simplify right side
   1,399.08x = 1,835,647.10
5. Step 5: Solve for x
   x = 1,835,647.10/1,399.08
6. Step 6: Final answer
   x = 1,312.04