Finding the Fourth Proportional to 2,381.67, 3,573.35 and 1,065.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,381.67 : 3,573.35 = 1,065.31 : x
2. Step 2: Convert to fraction form
   2,381.67/3,573.35 = 1,065.31/x
3. Step 3: Cross multiply
   2,381.67x = 3,573.35 × 1,065.31
4. Step 4: Simplify right side
   2,381.67x = 3,806,725.49
5. Step 5: Solve for x
   x = 3,806,725.49/2,381.67
6. Step 6: Final answer
   x = 1,598.34