Finding the Fourth Proportional to 1,434,387.58, 1,979,498.41 and 789,830.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434,387.58 : 1,979,498.41 = 789,830.84 : x
2. Step 2: Convert to fraction form
   1,434,387.58/1,979,498.41 = 789,830.84/x
3. Step 3: Cross multiply
   1,434,387.58x = 1,979,498.41 × 789,830.84
4. Step 4: Simplify right side
   1,434,387.58x = 1,563,468,887,000.22
5. Step 5: Solve for x
   x = 1,563,468,887,000.22/1,434,387.58
6. Step 6: Final answer
   x = 1,089,990.54