Finding the Fourth Proportional to 2,316.70, 3,196.83 and 1,322.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,316.70 : 3,196.83 = 1,322.20 : x
2. Step 2: Convert to fraction form
   2,316.70/3,196.83 = 1,322.20/x
3. Step 3: Cross multiply
   2,316.70x = 3,196.83 × 1,322.20
4. Step 4: Simplify right side
   2,316.70x = 4,226,848.63
5. Step 5: Solve for x
   x = 4,226,848.63/2,316.70
6. Step 6: Final answer
   x = 1,824.51