Finding the Fourth Proportional to 3,938,686.47, 5,905,667.49 and 1,806,099.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,938,686.47 : 5,905,667.49 = 1,806,099.03 : x
2. Step 2: Convert to fraction form
   3,938,686.47/5,905,667.49 = 1,806,099.03/x
3. Step 3: Cross multiply
   3,938,686.47x = 5,905,667.49 × 1,806,099.03
4. Step 4: Simplify right side
   3,938,686.47x = 10,666,220,325,191.54
5. Step 5: Solve for x
   x = 10,666,220,325,191.54/3,938,686.47
6. Step 6: Final answer
   x = 2,708,065.34