Finding the Fourth Proportional to 1,092.45, 1,508.63 and 994.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,092.45 : 1,508.63 = 994.04 : x
2. Step 2: Convert to fraction form
   1,092.45/1,508.63 = 994.04/x
3. Step 3: Cross multiply
   1,092.45x = 1,508.63 × 994.04
4. Step 4: Simplify right side
   1,092.45x = 1,499,631.71
5. Step 5: Solve for x
   x = 1,499,631.71/1,092.45
6. Step 6: Final answer
   x = 1,372.72