Finding the Fourth Proportional to 3,321,128.52, 4,978,362.06 and 1,160,476.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,321,128.52 : 4,978,362.06 = 1,160,476.20 : x
2. Step 2: Convert to fraction form
   3,321,128.52/4,978,362.06 = 1,160,476.20/x
3. Step 3: Cross multiply
   3,321,128.52x = 4,978,362.06 × 1,160,476.20
4. Step 4: Simplify right side
   3,321,128.52x = 5,777,270,685,612.97
5. Step 5: Solve for x
   x = 5,777,270,685,612.97/3,321,128.52
6. Step 6: Final answer
   x = 1,739,550.47