Finding the Fourth Proportional to 2,457,814.86, 3,390,395.28 and 1,538,448.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,457,814.86 : 3,390,395.28 = 1,538,448.12 : x
2. Step 2: Convert to fraction form
   2,457,814.86/3,390,395.28 = 1,538,448.12/x
3. Step 3: Cross multiply
   2,457,814.86x = 3,390,395.28 × 1,538,448.12
4. Step 4: Simplify right side
   2,457,814.86x = 5,215,947,244,572.87
5. Step 5: Solve for x
   x = 5,215,947,244,572.87/2,457,814.86
6. Step 6: Final answer
   x = 2,122,188.83