Finding the Fourth Proportional to 1,849.16, 2,547.50 and 1,288.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,849.16 : 2,547.50 = 1,288.61 : x
2. Step 2: Convert to fraction form
   1,849.16/2,547.50 = 1,288.61/x
3. Step 3: Cross multiply
   1,849.16x = 2,547.50 × 1,288.61
4. Step 4: Simplify right side
   1,849.16x = 3,282,729.18
5. Step 5: Solve for x
   x = 3,282,729.18/1,849.16
6. Step 6: Final answer
   x = 1,775.26