Finding the Fourth Proportional to 1,447,616.15, 2,170,012.17 and 689,253.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,447,616.15 : 2,170,012.17 = 689,253.86 : x
2. Step 2: Convert to fraction form
   1,447,616.15/2,170,012.17 = 689,253.86/x
3. Step 3: Cross multiply
   1,447,616.15x = 2,170,012.17 × 689,253.86
4. Step 4: Simplify right side
   1,447,616.15x = 1,495,689,260,222.89
5. Step 5: Solve for x
   x = 1,495,689,260,222.89/1,447,616.15
6. Step 6: Final answer
   x = 1,033,208.46