Finding the Fourth Proportional to 4,789.82, 7,180.47 and 1,870.17

Step by Step Solution

1. Step 1: Write the proportion equation
   4,789.82 : 7,180.47 = 1,870.17 : x
2. Step 2: Convert to fraction form
   4,789.82/7,180.47 = 1,870.17/x
3. Step 3: Cross multiply
   4,789.82x = 7,180.47 × 1,870.17
4. Step 4: Simplify right side
   4,789.82x = 13,428,699.58
5. Step 5: Solve for x
   x = 13,428,699.58/4,789.82
6. Step 6: Final answer
   x = 2,803.59