Finding the Fourth Proportional to 2,335.30, 3,501.90 and 691.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,335.30 : 3,501.90 = 691.54 : x
2. Step 2: Convert to fraction form
   2,335.30/3,501.90 = 691.54/x
3. Step 3: Cross multiply
   2,335.30x = 3,501.90 × 691.54
4. Step 4: Simplify right side
   2,335.30x = 2,421,695.17
5. Step 5: Solve for x
   x = 2,421,695.17/2,335.30
6. Step 6: Final answer
   x = 1,037.00