Finding the Fourth Proportional to 3,918,661.32, 5,878,680.84 and 1,788,960.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,918,661.32 : 5,878,680.84 = 1,788,960.72 : x
2. Step 2: Convert to fraction form
   3,918,661.32/5,878,680.84 = 1,788,960.72/x
3. Step 3: Cross multiply
   3,918,661.32x = 5,878,680.84 × 1,788,960.72
4. Step 4: Simplify right side
   3,918,661.32x = 10,516,729,108,176.60
5. Step 5: Solve for x
   x = 10,516,729,108,176.60/3,918,661.32
6. Step 6: Final answer
   x = 2,683,755.56