Finding the Fourth Proportional to 2,316.28, 3,196.38 and 1,384.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,316.28 : 3,196.38 = 1,384.84 : x
2. Step 2: Convert to fraction form
   2,316.28/3,196.38 = 1,384.84/x
3. Step 3: Cross multiply
   2,316.28x = 3,196.38 × 1,384.84
4. Step 4: Simplify right side
   2,316.28x = 4,426,474.88
5. Step 5: Solve for x
   x = 4,426,474.88/2,316.28
6. Step 6: Final answer
   x = 1,911.03