Finding the Fourth Proportional to 2,590,905.94, 3,881,154.17 and 1,290,139.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590,905.94 : 3,881,154.17 = 1,290,139.52 : x
2. Step 2: Convert to fraction form
   2,590,905.94/3,881,154.17 = 1,290,139.52/x
3. Step 3: Cross multiply
   2,590,905.94x = 3,881,154.17 × 1,290,139.52
4. Step 4: Simplify right side
   2,590,905.94x = 5,007,230,361,749.38
5. Step 5: Solve for x
   x = 5,007,230,361,749.38/2,590,905.94
6. Step 6: Final answer
   x = 1,932,617.58