Finding the Fourth Proportional to 2,291,309.16, 3,162,106.72 and 1,272,713.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,291,309.16 : 3,162,106.72 = 1,272,713.91 : x
2. Step 2: Convert to fraction form
   2,291,309.16/3,162,106.72 = 1,272,713.91/x
3. Step 3: Cross multiply
   2,291,309.16x = 3,162,106.72 × 1,272,713.91
4. Step 4: Simplify right side
   2,291,309.16x = 4,024,457,207,448.48
5. Step 5: Solve for x
   x = 4,024,457,207,448.48/2,291,309.16
6. Step 6: Final answer
   x = 1,756,400.79