Finding the Fourth Proportional to 1,659.57, 2,487.89 and 1,075.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,659.57 : 2,487.89 = 1,075.02 : x
2. Step 2: Convert to fraction form
   1,659.57/2,487.89 = 1,075.02/x
3. Step 3: Cross multiply
   1,659.57x = 2,487.89 × 1,075.02
4. Step 4: Simplify right side
   1,659.57x = 2,674,526.13
5. Step 5: Solve for x
   x = 2,674,526.13/1,659.57
6. Step 6: Final answer
   x = 1,611.58