Finding the Fourth Proportional to 2,385,979.82, 3,578,969.74 and 869,776.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385,979.82 : 3,578,969.74 = 869,776.46 : x
2. Step 2: Convert to fraction form
   2,385,979.82/3,578,969.74 = 869,776.46/x
3. Step 3: Cross multiply
   2,385,979.82x = 3,578,969.74 × 869,776.46
4. Step 4: Simplify right side
   2,385,979.82x = 3,112,903,630,904.32
5. Step 5: Solve for x
   x = 3,112,903,630,904.32/2,385,979.82
6. Step 6: Final answer
   x = 1,304,664.69