Finding the Fourth Proportional to 2,391,112.32, 3,299,757.12 and 1,318,062.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391,112.32 : 3,299,757.12 = 1,318,062.72 : x
2. Step 2: Convert to fraction form
   2,391,112.32/3,299,757.12 = 1,318,062.72/x
3. Step 3: Cross multiply
   2,391,112.32x = 3,299,757.12 × 1,318,062.72
4. Step 4: Simplify right side
   2,391,112.32x = 4,349,286,844,926.57
5. Step 5: Solve for x
   x = 4,349,286,844,926.57/2,391,112.32
6. Step 6: Final answer
   x = 1,818,938.75