Finding the Fourth Proportional to 2,051.51, 3,066.38 and 1,785.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051.51 : 3,066.38 = 1,785.90 : x
2. Step 2: Convert to fraction form
   2,051.51/3,066.38 = 1,785.90/x
3. Step 3: Cross multiply
   2,051.51x = 3,066.38 × 1,785.90
4. Step 4: Simplify right side
   2,051.51x = 5,476,239.11
5. Step 5: Solve for x
   x = 5,476,239.11/2,051.51
6. Step 6: Final answer
   x = 2,669.38