Finding the Fourth Proportional to 3,602.63, 5,400.72 and 1,412.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,602.63 : 5,400.72 = 1,412.89 : x
2. Step 2: Convert to fraction form
   3,602.63/5,400.72 = 1,412.89/x
3. Step 3: Cross multiply
   3,602.63x = 5,400.72 × 1,412.89
4. Step 4: Simplify right side
   3,602.63x = 7,630,623.28
5. Step 5: Solve for x
   x = 7,630,623.28/3,602.63
6. Step 6: Final answer
   x = 2,118.07