Finding the Fourth Proportional to 2,372.93, 3,561.21 and 1,075.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,372.93 : 3,561.21 = 1,075.31 : x
2. Step 2: Convert to fraction form
   2,372.93/3,561.21 = 1,075.31/x
3. Step 3: Cross multiply
   2,372.93x = 3,561.21 × 1,075.31
4. Step 4: Simplify right side
   2,372.93x = 3,829,404.73
5. Step 5: Solve for x
   x = 3,829,404.73/2,372.93
6. Step 6: Final answer
   x = 1,613.79