Finding the Fourth Proportional to 2,147,888.18, 3,217,480.54 and 993,494

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147,888.18 : 3,217,480.54 = 993,494 : x
2. Step 2: Convert to fraction form
   2,147,888.18/3,217,480.54 = 993,494/x
3. Step 3: Cross multiply
   2,147,888.18x = 3,217,480.54 × 993,494
4. Step 4: Simplify right side
   2,147,888.18x = 3,196,547,611,606.76
5. Step 5: Solve for x
   x = 3,196,547,611,606.76/2,147,888.18
6. Step 6: Final answer
   x = 1,488,228.13