Finding the Fourth Proportional to 2,308,849.48, 3,186,157.12 and 1,290,451.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308,849.48 : 3,186,157.12 = 1,290,451.12 : x
2. Step 2: Convert to fraction form
   2,308,849.48/3,186,157.12 = 1,290,451.12/x
3. Step 3: Cross multiply
   2,308,849.48x = 3,186,157.12 × 1,290,451.12
4. Step 4: Simplify right side
   2,308,849.48x = 4,111,580,023,999.98
5. Step 5: Solve for x
   x = 4,111,580,023,999.98/2,308,849.48
6. Step 6: Final answer
   x = 1,780,791.71