Finding the Fourth Proportional to 2,308,838.58, 3,186,201.56 and 1,290,243.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308,838.58 : 3,186,201.56 = 1,290,243.33 : x
2. Step 2: Convert to fraction form
   2,308,838.58/3,186,201.56 = 1,290,243.33/x
3. Step 3: Cross multiply
   2,308,838.58x = 3,186,201.56 × 1,290,243.33
4. Step 4: Simplify right side
   2,308,838.58x = 4,110,975,301,247.29
5. Step 5: Solve for x
   x = 4,110,975,301,247.29/2,308,838.58
6. Step 6: Final answer
   x = 1,780,538.21