Finding the Fourth Proportional to 2,748.03, 4,121.69 and 899.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,748.03 : 4,121.69 = 899.10 : x
2. Step 2: Convert to fraction form
   2,748.03/4,121.69 = 899.10/x
3. Step 3: Cross multiply
   2,748.03x = 4,121.69 × 899.10
4. Step 4: Simplify right side
   2,748.03x = 3,705,806.98
5. Step 5: Solve for x
   x = 3,705,806.98/2,748.03
6. Step 6: Final answer
   x = 1,348.53