Finding the Fourth Proportional to 1,955.79, 2,940.72 and 1,788.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,955.79 : 2,940.72 = 1,788.03 : x
2. Step 2: Convert to fraction form
   1,955.79/2,940.72 = 1,788.03/x
3. Step 3: Cross multiply
   1,955.79x = 2,940.72 × 1,788.03
4. Step 4: Simplify right side
   1,955.79x = 5,258,095.58
5. Step 5: Solve for x
   x = 5,258,095.58/1,955.79
6. Step 6: Final answer
   x = 2,688.48