Finding the Fourth Proportional to 2,885,443.40, 3,981,196.50 and 1,865,621

Step by Step Solution

1. Step 1: Write the proportion equation
   2,885,443.40 : 3,981,196.50 = 1,865,621 : x
2. Step 2: Convert to fraction form
   2,885,443.40/3,981,196.50 = 1,865,621/x
3. Step 3: Cross multiply
   2,885,443.40x = 3,981,196.50 × 1,865,621
4. Step 4: Simplify right side
   2,885,443.40x = 7,427,403,795,526.50
5. Step 5: Solve for x
   x = 7,427,403,795,526.50/2,885,443.40
6. Step 6: Final answer
   x = 2,574,094.43