Finding the Fourth Proportional to 2,190,918.72, 3,022,949.67 and 1,272,602.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190,918.72 : 3,022,949.67 = 1,272,602.22 : x
2. Step 2: Convert to fraction form
   2,190,918.72/3,022,949.67 = 1,272,602.22/x
3. Step 3: Cross multiply
   2,190,918.72x = 3,022,949.67 × 1,272,602.22
4. Step 4: Simplify right side
   2,190,918.72x = 3,847,012,460,990.27
5. Step 5: Solve for x
   x = 3,847,012,460,990.27/2,190,918.72
6. Step 6: Final answer
   x = 1,755,890.09