Finding the Fourth Proportional to 2,505,374.05, 3,758,028.27 and 612,131.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505,374.05 : 3,758,028.27 = 612,131.89 : x
2. Step 2: Convert to fraction form
   2,505,374.05/3,758,028.27 = 612,131.89/x
3. Step 3: Cross multiply
   2,505,374.05x = 3,758,028.27 × 612,131.89
4. Step 4: Simplify right side
   2,505,374.05x = 2,300,408,947,588.53
5. Step 5: Solve for x
   x = 2,300,408,947,588.53/2,505,374.05
6. Step 6: Final answer
   x = 918,189.82