Finding the Fourth Proportional to 3,364.83, 5,046.89 and 899.90

Step by Step Solution

1. Step 1: Write the proportion equation
   3,364.83 : 5,046.89 = 899.90 : x
2. Step 2: Convert to fraction form
   3,364.83/5,046.89 = 899.90/x
3. Step 3: Cross multiply
   3,364.83x = 5,046.89 × 899.90
4. Step 4: Simplify right side
   3,364.83x = 4,541,666.58
5. Step 5: Solve for x
   x = 4,541,666.58/3,364.83
6. Step 6: Final answer
   x = 1,349.75