Finding the Fourth Proportional to 2,190,196.18, 3,022,438.88 and 1,223,340.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,190,196.18 : 3,022,438.88 = 1,223,340.22 : x
2. Step 2: Convert to fraction form
   2,190,196.18/3,022,438.88 = 1,223,340.22/x
3. Step 3: Cross multiply
   2,190,196.18x = 3,022,438.88 × 1,223,340.22
4. Step 4: Simplify right side
   2,190,196.18x = 3,697,471,044,395.75
5. Step 5: Solve for x
   x = 3,697,471,044,395.75/2,190,196.18
6. Step 6: Final answer
   x = 1,688,191.71