Finding the Fourth Proportional to 2,077.23, 2,870.21 and 1,661.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,077.23 : 2,870.21 = 1,661.01 : x
2. Step 2: Convert to fraction form
   2,077.23/2,870.21 = 1,661.01/x
3. Step 3: Cross multiply
   2,077.23x = 2,870.21 × 1,661.01
4. Step 4: Simplify right side
   2,077.23x = 4,767,447.51
5. Step 5: Solve for x
   x = 4,767,447.51/2,077.23
6. Step 6: Final answer
   x = 2,295.10