Finding the Fourth Proportional to 866,298.94, 1,297,429.89 and 842,383.42

Step by Step Solution

1. Step 1: Write the proportion equation
   866,298.94 : 1,297,429.89 = 842,383.42 : x
2. Step 2: Convert to fraction form
   866,298.94/1,297,429.89 = 842,383.42/x
3. Step 3: Cross multiply
   866,298.94x = 1,297,429.89 × 842,383.42
4. Step 4: Simplify right side
   866,298.94x = 1,092,933,427,948.42
5. Step 5: Solve for x
   x = 1,092,933,427,948.42/866,298.94
6. Step 6: Final answer
   x = 1,261,612.33