Finding the Fourth Proportional to 1,852.46, 2,780.06 and 1,491.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,852.46 : 2,780.06 = 1,491.61 : x
2. Step 2: Convert to fraction form
   1,852.46/2,780.06 = 1,491.61/x
3. Step 3: Cross multiply
   1,852.46x = 2,780.06 × 1,491.61
4. Step 4: Simplify right side
   1,852.46x = 4,146,750.89
5. Step 5: Solve for x
   x = 4,146,750.89/1,852.46
6. Step 6: Final answer
   x = 2,238.51