Finding the Fourth Proportional to 2,254,566.78, 3,111,237.81 and 1,287,677.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,254,566.78 : 3,111,237.81 = 1,287,677.07 : x
2. Step 2: Convert to fraction form
   2,254,566.78/3,111,237.81 = 1,287,677.07/x
3. Step 3: Cross multiply
   2,254,566.78x = 3,111,237.81 × 1,287,677.07
4. Step 4: Simplify right side
   2,254,566.78x = 4,006,269,587,254.02
5. Step 5: Solve for x
   x = 4,006,269,587,254.02/2,254,566.78
6. Step 6: Final answer
   x = 1,776,957.61