Finding the Fourth Proportional to 2,479,118.72, 3,718,188.48 and 681,538.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479,118.72 : 3,718,188.48 = 681,538.40 : x
2. Step 2: Convert to fraction form
   2,479,118.72/3,718,188.48 = 681,538.40/x
3. Step 3: Cross multiply
   2,479,118.72x = 3,718,188.48 × 681,538.40
4. Step 4: Simplify right side
   2,479,118.72x = 2,534,088,227,557.63
5. Step 5: Solve for x
   x = 2,534,088,227,557.63/2,479,118.72
6. Step 6: Final answer
   x = 1,022,173.00