Finding the Fourth Proportional to 1,925.69, 2,660.08 and 1,489.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,925.69 : 2,660.08 = 1,489.10 : x
2. Step 2: Convert to fraction form
   1,925.69/2,660.08 = 1,489.10/x
3. Step 3: Cross multiply
   1,925.69x = 2,660.08 × 1,489.10
4. Step 4: Simplify right side
   1,925.69x = 3,961,111.83
5. Step 5: Solve for x
   x = 3,961,111.83/1,925.69
6. Step 6: Final answer
   x = 2,056.99