Finding the Fourth Proportional to 2,290,696.32, 3,162,742.56 and 1,431,642.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290,696.32 : 3,162,742.56 = 1,431,642.72 : x
2. Step 2: Convert to fraction form
   2,290,696.32/3,162,742.56 = 1,431,642.72/x
3. Step 3: Cross multiply
   2,290,696.32x = 3,162,742.56 × 1,431,642.72
4. Step 4: Simplify right side
   2,290,696.32x = 4,527,917,361,258.16
5. Step 5: Solve for x
   x = 4,527,917,361,258.16/2,290,696.32
6. Step 6: Final answer
   x = 1,976,655.45