Finding the Fourth Proportional to 1,131.79, 1,696.47 and 740.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.79 : 1,696.47 = 740.56 : x
2. Step 2: Convert to fraction form
   1,131.79/1,696.47 = 740.56/x
3. Step 3: Cross multiply
   1,131.79x = 1,696.47 × 740.56
4. Step 4: Simplify right side
   1,131.79x = 1,256,337.82
5. Step 5: Solve for x
   x = 1,256,337.82/1,131.79
6. Step 6: Final answer
   x = 1,110.04