Finding the Fourth Proportional to 2,120.07, 2,925.81 and 1,235.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,120.07 : 2,925.81 = 1,235.82 : x
2. Step 2: Convert to fraction form
   2,120.07/2,925.81 = 1,235.82/x
3. Step 3: Cross multiply
   2,120.07x = 2,925.81 × 1,235.82
4. Step 4: Simplify right side
   2,120.07x = 3,615,774.51
5. Step 5: Solve for x
   x = 3,615,774.51/2,120.07
6. Step 6: Final answer
   x = 1,705.50