Finding the Fourth Proportional to 1,427.06, 1,976.98 and 1,393.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.06 : 1,976.98 = 1,393.04 : x
2. Step 2: Convert to fraction form
   1,427.06/1,976.98 = 1,393.04/x
3. Step 3: Cross multiply
   1,427.06x = 1,976.98 × 1,393.04
4. Step 4: Simplify right side
   1,427.06x = 2,754,012.22
5. Step 5: Solve for x
   x = 2,754,012.22/1,427.06
6. Step 6: Final answer
   x = 1,929.85