Finding the Fourth Proportional to 1,687.37, 2,330.84 and 1,530.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,687.37 : 2,330.84 = 1,530.18 : x
2. Step 2: Convert to fraction form
   1,687.37/2,330.84 = 1,530.18/x
3. Step 3: Cross multiply
   1,687.37x = 2,330.84 × 1,530.18
4. Step 4: Simplify right side
   1,687.37x = 3,566,591.23
5. Step 5: Solve for x
   x = 3,566,591.23/1,687.37
6. Step 6: Final answer
   x = 2,113.70