Finding the Fourth Proportional to 1,431,256.56, 1,975,034.52 and 786,660.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,431,256.56 : 1,975,034.52 = 786,660.72 : x
2. Step 2: Convert to fraction form
   1,431,256.56/1,975,034.52 = 786,660.72/x
3. Step 3: Cross multiply
   1,431,256.56x = 1,975,034.52 × 786,660.72
4. Step 4: Simplify right side
   1,431,256.56x = 1,553,682,077,528.05
5. Step 5: Solve for x
   x = 1,553,682,077,528.05/1,431,256.56
6. Step 6: Final answer
   x = 1,085,537.09