Finding the Fourth Proportional to 1,099,234.01, 1,648,854.72 and 389,282.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099,234.01 : 1,648,854.72 = 389,282.78 : x
2. Step 2: Convert to fraction form
   1,099,234.01/1,648,854.72 = 389,282.78/x
3. Step 3: Cross multiply
   1,099,234.01x = 1,648,854.72 × 389,282.78
4. Step 4: Simplify right side
   1,099,234.01x = 641,870,740,973.45
5. Step 5: Solve for x
   x = 641,870,740,973.45/1,099,234.01
6. Step 6: Final answer
   x = 583,925.48