Finding the Fourth Proportional to 1,075.47, 1,613.17 and 591.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,075.47 : 1,613.17 = 591.56 : x
2. Step 2: Convert to fraction form
   1,075.47/1,613.17 = 591.56/x
3. Step 3: Cross multiply
   1,075.47x = 1,613.17 × 591.56
4. Step 4: Simplify right side
   1,075.47x = 954,283.89
5. Step 5: Solve for x
   x = 954,283.89/1,075.47
6. Step 6: Final answer
   x = 887.32