Finding the Fourth Proportional to 1,300.34, 1,939.66 and 1,175.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.34 : 1,939.66 = 1,175.78 : x
2. Step 2: Convert to fraction form
   1,300.34/1,939.66 = 1,175.78/x
3. Step 3: Cross multiply
   1,300.34x = 1,939.66 × 1,175.78
4. Step 4: Simplify right side
   1,300.34x = 2,280,613.43
5. Step 5: Solve for x
   x = 2,280,613.43/1,300.34
6. Step 6: Final answer
   x = 1,753.86