Finding the Fourth Proportional to 1,764.30, 2,641.59 and 1,148.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,764.30 : 2,641.59 = 1,148.70 : x
2. Step 2: Convert to fraction form
   1,764.30/2,641.59 = 1,148.70/x
3. Step 3: Cross multiply
   1,764.30x = 2,641.59 × 1,148.70
4. Step 4: Simplify right side
   1,764.30x = 3,034,394.43
5. Step 5: Solve for x
   x = 3,034,394.43/1,764.30
6. Step 6: Final answer
   x = 1,719.89