Finding the Fourth Proportional to 1,069,473.56, 1,604,994.42 and 861,621.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069,473.56 : 1,604,994.42 = 861,621.08 : x
2. Step 2: Convert to fraction form
   1,069,473.56/1,604,994.42 = 861,621.08/x
3. Step 3: Cross multiply
   1,069,473.56x = 1,604,994.42 × 861,621.08
4. Step 4: Simplify right side
   1,069,473.56x = 1,382,897,025,554.37
5. Step 5: Solve for x
   x = 1,382,897,025,554.37/1,069,473.56
6. Step 6: Final answer
   x = 1,293,063.31