Finding the Fourth Proportional to 2,257,835.30, 3,115,814.34 and 1,225,342.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,257,835.30 : 3,115,814.34 = 1,225,342.82 : x
2. Step 2: Convert to fraction form
   2,257,835.30/3,115,814.34 = 1,225,342.82/x
3. Step 3: Cross multiply
   2,257,835.30x = 3,115,814.34 × 1,225,342.82
4. Step 4: Simplify right side
   2,257,835.30x = 3,817,940,742,356.61
5. Step 5: Solve for x
   x = 3,817,940,742,356.61/2,257,835.30
6. Step 6: Final answer
   x = 1,690,973.98