Finding the Fourth Proportional to 2,372.83, 3,558.94 and 812.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,372.83 : 3,558.94 = 812.77 : x
2. Step 2: Convert to fraction form
   2,372.83/3,558.94 = 812.77/x
3. Step 3: Cross multiply
   2,372.83x = 3,558.94 × 812.77
4. Step 4: Simplify right side
   2,372.83x = 2,892,588.73
5. Step 5: Solve for x
   x = 2,892,588.73/2,372.83
6. Step 6: Final answer
   x = 1,219.05