Finding the Fourth Proportional to 2,330.52, 3,216.82 and 1,386.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,330.52 : 3,216.82 = 1,386.48 : x
2. Step 2: Convert to fraction form
   2,330.52/3,216.82 = 1,386.48/x
3. Step 3: Cross multiply
   2,330.52x = 3,216.82 × 1,386.48
4. Step 4: Simplify right side
   2,330.52x = 4,460,056.59
5. Step 5: Solve for x
   x = 4,460,056.59/2,330.52
6. Step 6: Final answer
   x = 1,913.76