Finding the Fourth Proportional to 3,605,870.97, 5,407,966.89 and 1,688,105.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,605,870.97 : 5,407,966.89 = 1,688,105.25 : x
2. Step 2: Convert to fraction form
   3,605,870.97/5,407,966.89 = 1,688,105.25/x
3. Step 3: Cross multiply
   3,605,870.97x = 5,407,966.89 × 1,688,105.25
4. Step 4: Simplify right side
   3,605,870.97x = 9,129,217,298,835.17
5. Step 5: Solve for x
   x = 9,129,217,298,835.17/3,605,870.97
6. Step 6: Final answer
   x = 2,531,764.83