Finding the Fourth Proportional to 1,784.32, 2,462.20 and 998.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,784.32 : 2,462.20 = 998.22 : x
2. Step 2: Convert to fraction form
   1,784.32/2,462.20 = 998.22/x
3. Step 3: Cross multiply
   1,784.32x = 2,462.20 × 998.22
4. Step 4: Simplify right side
   1,784.32x = 2,457,817.28
5. Step 5: Solve for x
   x = 2,457,817.28/1,784.32
6. Step 6: Final answer
   x = 1,377.45