Finding the Fourth Proportional to 1,886.71, 2,603.73 and 1,140.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,886.71 : 2,603.73 = 1,140.52 : x
2. Step 2: Convert to fraction form
   1,886.71/2,603.73 = 1,140.52/x
3. Step 3: Cross multiply
   1,886.71x = 2,603.73 × 1,140.52
4. Step 4: Simplify right side
   1,886.71x = 2,969,606.14
5. Step 5: Solve for x
   x = 2,969,606.14/1,886.71
6. Step 6: Final answer
   x = 1,573.96