Finding the Fourth Proportional to 1,021,109.58, 1,531,466.73 and 389,873.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,021,109.58 : 1,531,466.73 = 389,873.34 : x
2. Step 2: Convert to fraction form
   1,021,109.58/1,531,466.73 = 389,873.34/x
3. Step 3: Cross multiply
   1,021,109.58x = 1,531,466.73 × 389,873.34
4. Step 4: Simplify right side
   1,021,109.58x = 597,078,049,123.98
5. Step 5: Solve for x
   x = 597,078,049,123.98/1,021,109.58
6. Step 6: Final answer
   x = 584,734.55