Finding the Fourth Proportional to 1,861.77, 2,570.00 and 1,199.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,861.77 : 2,570.00 = 1,199.46 : x
2. Step 2: Convert to fraction form
   1,861.77/2,570.00 = 1,199.46/x
3. Step 3: Cross multiply
   1,861.77x = 2,570.00 × 1,199.46
4. Step 4: Simplify right side
   1,861.77x = 3,082,606.20
5. Step 5: Solve for x
   x = 3,082,606.20/1,861.77
6. Step 6: Final answer
   x = 1,655.74