Finding the Fourth Proportional to 1,073,109.10, 1,609,080.44 and 442,086.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,073,109.10 : 1,609,080.44 = 442,086.70 : x
2. Step 2: Convert to fraction form
   1,073,109.10/1,609,080.44 = 442,086.70/x
3. Step 3: Cross multiply
   1,073,109.10x = 1,609,080.44 × 442,086.70
4. Step 4: Simplify right side
   1,073,109.10x = 711,353,061,754.15
5. Step 5: Solve for x
   x = 711,353,061,754.15/1,073,109.10
6. Step 6: Final answer
   x = 662,889.79