Finding the Fourth Proportional to 1,997.02, 2,994.81 and 842.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997.02 : 2,994.81 = 842.86 : x
2. Step 2: Convert to fraction form
   1,997.02/2,994.81 = 842.86/x
3. Step 3: Cross multiply
   1,997.02x = 2,994.81 × 842.86
4. Step 4: Simplify right side
   1,997.02x = 2,524,205.56
5. Step 5: Solve for x
   x = 2,524,205.56/1,997.02
6. Step 6: Final answer
   x = 1,263.99