Finding the Fourth Proportional to 1,676.78, 2,314.32 and 930.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,676.78 : 2,314.32 = 930.99 : x
2. Step 2: Convert to fraction form
   1,676.78/2,314.32 = 930.99/x
3. Step 3: Cross multiply
   1,676.78x = 2,314.32 × 930.99
4. Step 4: Simplify right side
   1,676.78x = 2,154,608.78
5. Step 5: Solve for x
   x = 2,154,608.78/1,676.78
6. Step 6: Final answer
   x = 1,284.97