Finding the Fourth Proportional to 2,259,419.60, 3,117,987.72 and 1,226,918.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,259,419.60 : 3,117,987.72 = 1,226,918.17 : x
2. Step 2: Convert to fraction form
   2,259,419.60/3,117,987.72 = 1,226,918.17/x
3. Step 3: Cross multiply
   2,259,419.60x = 3,117,987.72 × 1,226,918.17
4. Step 4: Simplify right side
   2,259,419.60x = 3,825,515,779,709.90
5. Step 5: Solve for x
   x = 3,825,515,779,709.90/2,259,419.60
6. Step 6: Final answer
   x = 1,693,140.92