Finding the Fourth Proportional to 2,142,706.57, 2,956,473.17 and 1,236,763.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,706.57 : 2,956,473.17 = 1,236,763.69 : x
2. Step 2: Convert to fraction form
   2,142,706.57/2,956,473.17 = 1,236,763.69/x
3. Step 3: Cross multiply
   2,142,706.57x = 2,956,473.17 × 1,236,763.69
4. Step 4: Simplify right side
   2,142,706.57x = 3,656,458,658,178.06
5. Step 5: Solve for x
   x = 3,656,458,658,178.06/2,142,706.57
6. Step 6: Final answer
   x = 1,706,467.28