Finding the Fourth Proportional to 2,999.86, 4,499.83 and 1,052.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,999.86 : 4,499.83 = 1,052.12 : x
2. Step 2: Convert to fraction form
   2,999.86/4,499.83 = 1,052.12/x
3. Step 3: Cross multiply
   2,999.86x = 4,499.83 × 1,052.12
4. Step 4: Simplify right side
   2,999.86x = 4,734,361.14
5. Step 5: Solve for x
   x = 4,734,361.14/2,999.86
6. Step 6: Final answer
   x = 1,578.19