Finding the Fourth Proportional to 2,261,788.02, 3,121,312.05 and 1,243,287.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,261,788.02 : 3,121,312.05 = 1,243,287.54 : x
2. Step 2: Convert to fraction form
   2,261,788.02/3,121,312.05 = 1,243,287.54/x
3. Step 3: Cross multiply
   2,261,788.02x = 3,121,312.05 × 1,243,287.54
4. Step 4: Simplify right side
   2,261,788.02x = 3,880,688,380,216.86
5. Step 5: Solve for x
   x = 3,880,688,380,216.86/2,261,788.02
6. Step 6: Final answer
   x = 1,715,761.31