Finding the Fourth Proportional to 3,938,680.22, 5,905,658.10 and 1,806,092.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,938,680.22 : 5,905,658.10 = 1,806,092.78 : x
2. Step 2: Convert to fraction form
   3,938,680.22/5,905,658.10 = 1,806,092.78/x
3. Step 3: Cross multiply
   3,938,680.22x = 5,905,658.10 × 1,806,092.78
4. Step 4: Simplify right side
   3,938,680.22x = 10,666,166,455,558.52
5. Step 5: Solve for x
   x = 10,666,166,455,558.52/3,938,680.22
6. Step 6: Final answer
   x = 2,708,055.96