Finding the Fourth Proportional to 3,978,732.15, 5,969,262.60 and 1,283,002.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978,732.15 : 5,969,262.60 = 1,283,002.74 : x
2. Step 2: Convert to fraction form
   3,978,732.15/5,969,262.60 = 1,283,002.74/x
3. Step 3: Cross multiply
   3,978,732.15x = 5,969,262.60 × 1,283,002.74
4. Step 4: Simplify right side
   3,978,732.15x = 7,658,580,271,579.52
5. Step 5: Solve for x
   x = 7,658,580,271,579.52/3,978,732.15
6. Step 6: Final answer
   x = 1,924,879.58