Finding the Fourth Proportional to 1,488,923.82, 2,233,100.85 and 578,106.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488,923.82 : 2,233,100.85 = 578,106.30 : x
2. Step 2: Convert to fraction form
   1,488,923.82/2,233,100.85 = 578,106.30/x
3. Step 3: Cross multiply
   1,488,923.82x = 2,233,100.85 × 578,106.30
4. Step 4: Simplify right side
   1,488,923.82x = 1,290,969,669,920.36
5. Step 5: Solve for x
   x = 1,290,969,669,920.36/1,488,923.82
6. Step 6: Final answer
   x = 867,048.84