Finding the Fourth Proportional to 2,075.56, 2,863.98 and 1,191.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.56 : 2,863.98 = 1,191.40 : x
2. Step 2: Convert to fraction form
   2,075.56/2,863.98 = 1,191.40/x
3. Step 3: Cross multiply
   2,075.56x = 2,863.98 × 1,191.40
4. Step 4: Simplify right side
   2,075.56x = 3,412,145.77
5. Step 5: Solve for x
   x = 3,412,145.77/2,075.56
6. Step 6: Final answer
   x = 1,643.96