Finding the Fourth Proportional to 2,771,494.72, 4,157,592 and 877,559.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,771,494.72 : 4,157,592 = 877,559.20 : x
2. Step 2: Convert to fraction form
   2,771,494.72/4,157,592 = 877,559.20/x
3. Step 3: Cross multiply
   2,771,494.72x = 4,157,592 × 877,559.20
4. Step 4: Simplify right side
   2,771,494.72x = 3,648,533,109,446.40
5. Step 5: Solve for x
   x = 3,648,533,109,446.40/2,771,494.72
6. Step 6: Final answer
   x = 1,316,449.60