Finding the Fourth Proportional to 1,300.92, 1,940.28 and 1,279.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.92 : 1,940.28 = 1,279.08 : x
2. Step 2: Convert to fraction form
   1,300.92/1,940.28 = 1,279.08/x
3. Step 3: Cross multiply
   1,300.92x = 1,940.28 × 1,279.08
4. Step 4: Simplify right side
   1,300.92x = 2,481,773.34
5. Step 5: Solve for x
   x = 2,481,773.34/1,300.92
6. Step 6: Final answer
   x = 1,907.71