Finding the Fourth Proportional to 1,353,538, 1,867,882.18 and 809,696.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353,538 : 1,867,882.18 = 809,696.72 : x
2. Step 2: Convert to fraction form
   1,353,538/1,867,882.18 = 809,696.72/x
3. Step 3: Cross multiply
   1,353,538x = 1,867,882.18 × 809,696.72
4. Step 4: Simplify right side
   1,353,538x = 1,512,418,074,492.45
5. Step 5: Solve for x
   x = 1,512,418,074,492.45/1,353,538
6. Step 6: Final answer
   x = 1,117,381.32