Finding the Fourth Proportional to 3,423,019.55, 5,126,378.51 and 1,980,663.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,423,019.55 : 5,126,378.51 = 1,980,663.25 : x
2. Step 2: Convert to fraction form
   3,423,019.55/5,126,378.51 = 1,980,663.25/x
3. Step 3: Cross multiply
   3,423,019.55x = 5,126,378.51 × 1,980,663.25
4. Step 4: Simplify right side
   3,423,019.55x = 10,153,629,504,992.68
5. Step 5: Solve for x
   x = 10,153,629,504,992.68/3,423,019.55
6. Step 6: Final answer
   x = 2,966,278.56