Finding the Fourth Proportional to 1,146,050.72, 1,716,276 and 989,286.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146,050.72 : 1,716,276 = 989,286.56 : x
2. Step 2: Convert to fraction form
   1,146,050.72/1,716,276 = 989,286.56/x
3. Step 3: Cross multiply
   1,146,050.72x = 1,716,276 × 989,286.56
4. Step 4: Simplify right side
   1,146,050.72x = 1,697,888,780,050.56
5. Step 5: Solve for x
   x = 1,697,888,780,050.56/1,146,050.72
6. Step 6: Final answer
   x = 1,481,512.77