Finding the Fourth Proportional to 1,054,010.28, 1,454,706.42 and 646,336.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054,010.28 : 1,454,706.42 = 646,336.50 : x
2. Step 2: Convert to fraction form
   1,054,010.28/1,454,706.42 = 646,336.50/x
3. Step 3: Cross multiply
   1,054,010.28x = 1,454,706.42 × 646,336.50
4. Step 4: Simplify right side
   1,054,010.28x = 940,229,856,030.33
5. Step 5: Solve for x
   x = 940,229,856,030.33/1,054,010.28
6. Step 6: Final answer
   x = 892,049.99