Finding the Fourth Proportional to 1,408,731.63, 1,941,892.56 and 863,857.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408,731.63 : 1,941,892.56 = 863,857.05 : x
2. Step 2: Convert to fraction form
   1,408,731.63/1,941,892.56 = 863,857.05/x
3. Step 3: Cross multiply
   1,408,731.63x = 1,941,892.56 × 863,857.05
4. Step 4: Simplify right side
   1,408,731.63x = 1,677,517,578,298.55
5. Step 5: Solve for x
   x = 1,677,517,578,298.55/1,408,731.63
6. Step 6: Final answer
   x = 1,190,799.97