Finding the Fourth Proportional to 2,158,478.64, 3,237,858 and 719,100.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,478.64 : 3,237,858 = 719,100.72 : x
2. Step 2: Convert to fraction form
   2,158,478.64/3,237,858 = 719,100.72/x
3. Step 3: Cross multiply
   2,158,478.64x = 3,237,858 × 719,100.72
4. Step 4: Simplify right side
   2,158,478.64x = 2,328,346,019,057.76
5. Step 5: Solve for x
   x = 2,328,346,019,057.76/2,158,478.64
6. Step 6: Final answer
   x = 1,078,697.73