Finding the Fourth Proportional to 1,753,025.82, 2,628,352.17 and 687,402.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,753,025.82 : 2,628,352.17 = 687,402.78 : x
2. Step 2: Convert to fraction form
   1,753,025.82/2,628,352.17 = 687,402.78/x
3. Step 3: Cross multiply
   1,753,025.82x = 2,628,352.17 × 687,402.78
4. Step 4: Simplify right side
   1,753,025.82x = 1,806,736,588,477.03
5. Step 5: Solve for x
   x = 1,806,736,588,477.03/1,753,025.82
6. Step 6: Final answer
   x = 1,030,638.89