Finding the Fourth Proportional to 2,250,663.47, 3,105,915.32 and 1,218,171.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,250,663.47 : 3,105,915.32 = 1,218,171.06 : x
2. Step 2: Convert to fraction form
   2,250,663.47/3,105,915.32 = 1,218,171.06/x
3. Step 3: Cross multiply
   2,250,663.47x = 3,105,915.32 × 1,218,171.06
4. Step 4: Simplify right side
   2,250,663.47x = 3,783,536,165,989.35
5. Step 5: Solve for x
   x = 3,783,536,165,989.35/2,250,663.47
6. Step 6: Final answer
   x = 1,681,075.92