Finding the Fourth Proportional to 1,303.98, 1,797.62 and 930.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,303.98 : 1,797.62 = 930.31 : x
2. Step 2: Convert to fraction form
   1,303.98/1,797.62 = 930.31/x
3. Step 3: Cross multiply
   1,303.98x = 1,797.62 × 930.31
4. Step 4: Simplify right side
   1,303.98x = 1,672,343.86
5. Step 5: Solve for x
   x = 1,672,343.86/1,303.98
6. Step 6: Final answer
   x = 1,282.49