Finding the Fourth Proportional to 2,090,690.37, 2,884,802.99 and 1,231,421.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090,690.37 : 2,884,802.99 = 1,231,421.72 : x
2. Step 2: Convert to fraction form
   2,090,690.37/2,884,802.99 = 1,231,421.72/x
3. Step 3: Cross multiply
   2,090,690.37x = 2,884,802.99 × 1,231,421.72
4. Step 4: Simplify right side
   2,090,690.37x = 3,552,409,039,225.82
5. Step 5: Solve for x
   x = 3,552,409,039,225.82/2,090,690.37
6. Step 6: Final answer
   x = 1,699,155.98