Finding the Fourth Proportional to 3,980,288.78, 5,492,814.78 and 2,261,503.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,980,288.78 : 5,492,814.78 = 2,261,503.62 : x
2. Step 2: Convert to fraction form
   3,980,288.78/5,492,814.78 = 2,261,503.62/x
3. Step 3: Cross multiply
   3,980,288.78x = 5,492,814.78 × 2,261,503.62
4. Step 4: Simplify right side
   3,980,288.78x = 12,422,020,508,959.50
5. Step 5: Solve for x
   x = 12,422,020,508,959.50/3,980,288.78
6. Step 6: Final answer
   x = 3,120,884.24