Finding the Fourth Proportional to 2,113,256.94, 3,170,107.08 and 915,300.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113,256.94 : 3,170,107.08 = 915,300.42 : x
2. Step 2: Convert to fraction form
   2,113,256.94/3,170,107.08 = 915,300.42/x
3. Step 3: Cross multiply
   2,113,256.94x = 3,170,107.08 × 915,300.42
4. Step 4: Simplify right side
   2,113,256.94x = 2,901,600,341,768.97
5. Step 5: Solve for x
   x = 2,901,600,341,768.97/2,113,256.94
6. Step 6: Final answer
   x = 1,373,046.64