Finding the Fourth Proportional to 1,852.38, 2,554.61 and 1,431.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,852.38 : 2,554.61 = 1,431.72 : x
2. Step 2: Convert to fraction form
   1,852.38/2,554.61 = 1,431.72/x
3. Step 3: Cross multiply
   1,852.38x = 2,554.61 × 1,431.72
4. Step 4: Simplify right side
   1,852.38x = 3,657,479.07
5. Step 5: Solve for x
   x = 3,657,479.07/1,852.38
6. Step 6: Final answer
   x = 1,974.48