Finding the Fourth Proportional to 2,090,709.37, 2,884,829.20 and 1,231,440.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090,709.37 : 2,884,829.20 = 1,231,440.72 : x
2. Step 2: Convert to fraction form
   2,090,709.37/2,884,829.20 = 1,231,440.72/x
3. Step 3: Cross multiply
   2,090,709.37x = 2,884,829.20 × 1,231,440.72
4. Step 4: Simplify right side
   2,090,709.37x = 3,552,496,147,125.02
5. Step 5: Solve for x
   x = 3,552,496,147,125.02/2,090,709.37
6. Step 6: Final answer
   x = 1,699,182.20