Finding the Fourth Proportional to 2,874.42, 4,310.37 and 899.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,874.42 : 4,310.37 = 899.51 : x
2. Step 2: Convert to fraction form
   2,874.42/4,310.37 = 899.51/x
3. Step 3: Cross multiply
   2,874.42x = 4,310.37 × 899.51
4. Step 4: Simplify right side
   2,874.42x = 3,877,199.37
5. Step 5: Solve for x
   x = 3,877,199.37/2,874.42
6. Step 6: Final answer
   x = 1,348.86