Finding the Fourth Proportional to 1,330.79, 1,837.27 and 976.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,330.79 : 1,837.27 = 976.42 : x
2. Step 2: Convert to fraction form
   1,330.79/1,837.27 = 976.42/x
3. Step 3: Cross multiply
   1,330.79x = 1,837.27 × 976.42
4. Step 4: Simplify right side
   1,330.79x = 1,793,947.17
5. Step 5: Solve for x
   x = 1,793,947.17/1,330.79
6. Step 6: Final answer
   x = 1,348.03