Finding the Fourth Proportional to 2,278,458.52, 3,145,064.56 and 1,311,974.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,278,458.52 : 3,145,064.56 = 1,311,974.01 : x
2. Step 2: Convert to fraction form
   2,278,458.52/3,145,064.56 = 1,311,974.01/x
3. Step 3: Cross multiply
   2,278,458.52x = 3,145,064.56 × 1,311,974.01
4. Step 4: Simplify right side
   2,278,458.52x = 4,126,242,959,212.15
5. Step 5: Solve for x
   x = 4,126,242,959,212.15/2,278,458.52
6. Step 6: Final answer
   x = 1,810,980.07