Finding the Fourth Proportional to 3,621,401.61, 4,997,838.71 and 1,990,134.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,621,401.61 : 4,997,838.71 = 1,990,134.72 : x
2. Step 2: Convert to fraction form
   3,621,401.61/4,997,838.71 = 1,990,134.72/x
3. Step 3: Cross multiply
   3,621,401.61x = 4,997,838.71 × 1,990,134.72
4. Step 4: Simplify right side
   3,621,401.61x = 9,946,372,331,780.34
5. Step 5: Solve for x
   x = 9,946,372,331,780.34/3,621,401.61
6. Step 6: Final answer
   x = 2,746,553.24