Finding the Fourth Proportional to 3,171,870.25, 4,377,185.76 and 1,721,566.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,171,870.25 : 4,377,185.76 = 1,721,566.22 : x
2. Step 2: Convert to fraction form
   3,171,870.25/4,377,185.76 = 1,721,566.22/x
3. Step 3: Cross multiply
   3,171,870.25x = 4,377,185.76 × 1,721,566.22
4. Step 4: Simplify right side
   3,171,870.25x = 7,535,615,112,587.27
5. Step 5: Solve for x
   x = 7,535,615,112,587.27/3,171,870.25
6. Step 6: Final answer
   x = 2,375,763.99