Finding the Fourth Proportional to 1,419,072.59, 1,958,020.83 and 902,638.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,419,072.59 : 1,958,020.83 = 902,638.50 : x
2. Step 2: Convert to fraction form
   1,419,072.59/1,958,020.83 = 902,638.50/x
3. Step 3: Cross multiply
   1,419,072.59x = 1,958,020.83 × 902,638.50
4. Step 4: Simplify right side
   1,419,072.59x = 1,767,384,984,959.96
5. Step 5: Solve for x
   x = 1,767,384,984,959.96/1,419,072.59
6. Step 6: Final answer
   x = 1,245,450.73