Finding the Fourth Proportional to 2,979.93, 4,468.46 and 899.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,979.93 : 4,468.46 = 899.55 : x
2. Step 2: Convert to fraction form
   2,979.93/4,468.46 = 899.55/x
3. Step 3: Cross multiply
   2,979.93x = 4,468.46 × 899.55
4. Step 4: Simplify right side
   2,979.93x = 4,019,598.70
5. Step 5: Solve for x
   x = 4,019,598.70/2,979.93
6. Step 6: Final answer
   x = 1,348.89