Finding the Fourth Proportional to 866,443.29, 1,299,682.76 and 267,404.82

Step by Step Solution

1. Step 1: Write the proportion equation
   866,443.29 : 1,299,682.76 = 267,404.82 : x
2. Step 2: Convert to fraction form
   866,443.29/1,299,682.76 = 267,404.82/x
3. Step 3: Cross multiply
   866,443.29x = 1,299,682.76 × 267,404.82
4. Step 4: Simplify right side
   866,443.29x = 347,541,434,494.90
5. Step 5: Solve for x
   x = 347,541,434,494.90/866,443.29
6. Step 6: Final answer
   x = 401,112.73