Finding the Fourth Proportional to 2,364.89, 3,547.86 and 721.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,364.89 : 3,547.86 = 721.46 : x
2. Step 2: Convert to fraction form
   2,364.89/3,547.86 = 721.46/x
3. Step 3: Cross multiply
   2,364.89x = 3,547.86 × 721.46
4. Step 4: Simplify right side
   2,364.89x = 2,559,621.34
5. Step 5: Solve for x
   x = 2,559,621.34/2,364.89
6. Step 6: Final answer
   x = 1,082.34