Finding the Fourth Proportional to 2,087,196.60, 3,126,647.70 and 1,138,870.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087,196.60 : 3,126,647.70 = 1,138,870.20 : x
2. Step 2: Convert to fraction form
   2,087,196.60/3,126,647.70 = 1,138,870.20/x
3. Step 3: Cross multiply
   2,087,196.60x = 3,126,647.70 × 1,138,870.20
4. Step 4: Simplify right side
   2,087,196.60x = 3,560,845,891,428.54
5. Step 5: Solve for x
   x = 3,560,845,891,428.54/2,087,196.60
6. Step 6: Final answer
   x = 1,706,042.40