Finding the Fourth Proportional to 2,699.64, 3,725.28 and 1,521

Step by Step Solution

1. Step 1: Write the proportion equation
   2,699.64 : 3,725.28 = 1,521 : x
2. Step 2: Convert to fraction form
   2,699.64/3,725.28 = 1,521/x
3. Step 3: Cross multiply
   2,699.64x = 3,725.28 × 1,521
4. Step 4: Simplify right side
   2,699.64x = 5,666,150.88
5. Step 5: Solve for x
   x = 5,666,150.88/2,699.64
6. Step 6: Final answer
   x = 2,098.85