Finding the Fourth Proportional to 1,184,426.45, 1,776,764.25 and 385,770.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,184,426.45 : 1,776,764.25 = 385,770.30 : x
2. Step 2: Convert to fraction form
   1,184,426.45/1,776,764.25 = 385,770.30/x
3. Step 3: Cross multiply
   1,184,426.45x = 1,776,764.25 × 385,770.30
4. Step 4: Simplify right side
   1,184,426.45x = 685,422,866,939.10
5. Step 5: Solve for x
   x = 685,422,866,939.10/1,184,426.45
6. Step 6: Final answer
   x = 578,696.02