Finding the Fourth Proportional to 2,166,953.72, 2,991,198.54 and 1,307,550.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166,953.72 : 2,991,198.54 = 1,307,550.20 : x
2. Step 2: Convert to fraction form
   2,166,953.72/2,991,198.54 = 1,307,550.20/x
3. Step 3: Cross multiply
   2,166,953.72x = 2,991,198.54 × 1,307,550.20
4. Step 4: Simplify right side
   2,166,953.72x = 3,911,142,249,216.71
5. Step 5: Solve for x
   x = 3,911,142,249,216.71/2,166,953.72
6. Step 6: Final answer
   x = 1,804,903.45