Finding the Fourth Proportional to 1,760.78, 2,429.84 and 974.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,760.78 : 2,429.84 = 974.83 : x
2. Step 2: Convert to fraction form
   1,760.78/2,429.84 = 974.83/x
3. Step 3: Cross multiply
   1,760.78x = 2,429.84 × 974.83
4. Step 4: Simplify right side
   1,760.78x = 2,368,677.29
5. Step 5: Solve for x
   x = 2,368,677.29/1,760.78
6. Step 6: Final answer
   x = 1,345.24