Finding the Fourth Proportional to 2,613.92, 3,607.28 and 1,435.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.92 : 3,607.28 = 1,435.00 : x
2. Step 2: Convert to fraction form
   2,613.92/3,607.28 = 1,435.00/x
3. Step 3: Cross multiply
   2,613.92x = 3,607.28 × 1,435.00
4. Step 4: Simplify right side
   2,613.92x = 5,176,430.61
5. Step 5: Solve for x
   x = 5,176,430.61/2,613.92
6. Step 6: Final answer
   x = 1,980.33