Finding the Fourth Proportional to 3,603.35, 5,405.86 and 1,412.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,603.35 : 5,405.86 = 1,412.10 : x
2. Step 2: Convert to fraction form
   3,603.35/5,405.86 = 1,412.10/x
3. Step 3: Cross multiply
   3,603.35x = 5,405.86 × 1,412.10
4. Step 4: Simplify right side
   3,603.35x = 7,633,580.82
5. Step 5: Solve for x
   x = 7,633,580.82/3,603.35
6. Step 6: Final answer
   x = 2,118.47