Finding the Fourth Proportional to 2,684,490.56, 4,026,734.72 and 978,761.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,684,490.56 : 4,026,734.72 = 978,761.60 : x
2. Step 2: Convert to fraction form
   2,684,490.56/4,026,734.72 = 978,761.60/x
3. Step 3: Cross multiply
   2,684,490.56x = 4,026,734.72 × 978,761.60
4. Step 4: Simplify right side
   2,684,490.56x = 3,941,213,317,322.75
5. Step 5: Solve for x
   x = 3,941,213,317,322.75/2,684,490.56
6. Step 6: Final answer
   x = 1,468,141.99