Finding the Fourth Proportional to 1,735.79, 2,602.17 and 761.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,735.79 : 2,602.17 = 761.57 : x
2. Step 2: Convert to fraction form
   1,735.79/2,602.17 = 761.57/x
3. Step 3: Cross multiply
   1,735.79x = 2,602.17 × 761.57
4. Step 4: Simplify right side
   1,735.79x = 1,981,734.61
5. Step 5: Solve for x
   x = 1,981,734.61/1,735.79
6. Step 6: Final answer
   x = 1,141.69