Finding the Fourth Proportional to 2,156,615, 2,976,128.70 and 1,202,759

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156,615 : 2,976,128.70 = 1,202,759 : x
2. Step 2: Convert to fraction form
   2,156,615/2,976,128.70 = 1,202,759/x
3. Step 3: Cross multiply
   2,156,615x = 2,976,128.70 × 1,202,759
4. Step 4: Simplify right side
   2,156,615x = 3,579,565,579,083.30
5. Step 5: Solve for x
   x = 3,579,565,579,083.30/2,156,615
6. Step 6: Final answer
   x = 1,659,807.42