Finding the Fourth Proportional to 2,490.04, 3,732.72 and 845.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,490.04 : 3,732.72 = 845.42 : x
2. Step 2: Convert to fraction form
   2,490.04/3,732.72 = 845.42/x
3. Step 3: Cross multiply
   2,490.04x = 3,732.72 × 845.42
4. Step 4: Simplify right side
   2,490.04x = 3,155,716.14
5. Step 5: Solve for x
   x = 3,155,716.14/2,490.04
6. Step 6: Final answer
   x = 1,267.34