Finding the Fourth Proportional to 2,111,015.12, 3,159,048 and 1,312,672.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111,015.12 : 3,159,048 = 1,312,672.64 : x
2. Step 2: Convert to fraction form
   2,111,015.12/3,159,048 = 1,312,672.64/x
3. Step 3: Cross multiply
   2,111,015.12x = 3,159,048 × 1,312,672.64
4. Step 4: Simplify right side
   2,111,015.12x = 4,146,795,878,046.72
5. Step 5: Solve for x
   x = 4,146,795,878,046.72/2,111,015.12
6. Step 6: Final answer
   x = 1,964,361.05