Finding the Fourth Proportional to 1,304.34, 1,953.98 and 993.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,304.34 : 1,953.98 = 993.91 : x
2. Step 2: Convert to fraction form
   1,304.34/1,953.98 = 993.91/x
3. Step 3: Cross multiply
   1,304.34x = 1,953.98 × 993.91
4. Step 4: Simplify right side
   1,304.34x = 1,942,080.26
5. Step 5: Solve for x
   x = 1,942,080.26/1,304.34
6. Step 6: Final answer
   x = 1,488.94