Finding the Fourth Proportional to 1,095.34, 1,510.80 and 675.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.34 : 1,510.80 = 675.40 : x
2. Step 2: Convert to fraction form
   1,095.34/1,510.80 = 675.40/x
3. Step 3: Cross multiply
   1,095.34x = 1,510.80 × 675.40
4. Step 4: Simplify right side
   1,095.34x = 1,020,394.32
5. Step 5: Solve for x
   x = 1,020,394.32/1,095.34
6. Step 6: Final answer
   x = 931.58