Finding the Fourth Proportional to 1,862.03, 2,774.91 and 1,805.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,862.03 : 2,774.91 = 1,805.72 : x
2. Step 2: Convert to fraction form
   1,862.03/2,774.91 = 1,805.72/x
3. Step 3: Cross multiply
   1,862.03x = 2,774.91 × 1,805.72
4. Step 4: Simplify right side
   1,862.03x = 5,010,696.61
5. Step 5: Solve for x
   x = 5,010,696.61/1,862.03
6. Step 6: Final answer
   x = 2,690.99