Finding the Fourth Proportional to 2,931,678.60, 4,397,401.83 and 1,225,381.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,931,678.60 : 4,397,401.83 = 1,225,381.20 : x
2. Step 2: Convert to fraction form
   2,931,678.60/4,397,401.83 = 1,225,381.20/x
3. Step 3: Cross multiply
   2,931,678.60x = 4,397,401.83 × 1,225,381.20
4. Step 4: Simplify right side
   2,931,678.60x = 5,388,493,531,327.60
5. Step 5: Solve for x
   x = 5,388,493,531,327.60/2,931,678.60
6. Step 6: Final answer
   x = 1,838,023.29