Finding the Fourth Proportional to 2,142,457.72, 3,213,704.76 and 545,022.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,457.72 : 3,213,704.76 = 545,022.16 : x
2. Step 2: Convert to fraction form
   2,142,457.72/3,213,704.76 = 545,022.16/x
3. Step 3: Cross multiply
   2,142,457.72x = 3,213,704.76 × 545,022.16
4. Step 4: Simplify right side
   2,142,457.72x = 1,751,540,309,897.48
5. Step 5: Solve for x
   x = 1,751,540,309,897.48/2,142,457.72
6. Step 6: Final answer
   x = 817,537.86