Finding the Fourth Proportional to 1,188.76, 1,789.75 and 1,030

Step by Step Solution

1. Step 1: Write the proportion equation
   1,188.76 : 1,789.75 = 1,030 : x
2. Step 2: Convert to fraction form
   1,188.76/1,789.75 = 1,030/x
3. Step 3: Cross multiply
   1,188.76x = 1,789.75 × 1,030
4. Step 4: Simplify right side
   1,188.76x = 1,843,442.50
5. Step 5: Solve for x
   x = 1,843,442.50/1,188.76
6. Step 6: Final answer
   x = 1,550.73