Finding the Fourth Proportional to 3,686,118.32, 5,529,174.57 and 990,443.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,686,118.32 : 5,529,174.57 = 990,443.52 : x
2. Step 2: Convert to fraction form
   3,686,118.32/5,529,174.57 = 990,443.52/x
3. Step 3: Cross multiply
   3,686,118.32x = 5,529,174.57 × 990,443.52
4. Step 4: Simplify right side
   3,686,118.32x = 5,476,335,123,805.29
5. Step 5: Solve for x
   x = 5,476,335,123,805.29/3,686,118.32
6. Step 6: Final answer
   x = 1,485,664.50