Finding the Fourth Proportional to 1,433,310.42, 1,978,049.88 and 821,564.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433,310.42 : 1,978,049.88 = 821,564.76 : x
2. Step 2: Convert to fraction form
   1,433,310.42/1,978,049.88 = 821,564.76/x
3. Step 3: Cross multiply
   1,433,310.42x = 1,978,049.88 × 821,564.76
4. Step 4: Simplify right side
   1,433,310.42x = 1,625,096,074,930.23
5. Step 5: Solve for x
   x = 1,625,096,074,930.23/1,433,310.42
6. Step 6: Final answer
   x = 1,133,806.08