Finding the Fourth Proportional to 2,505,376.05, 3,758,031.27 and 612,133.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505,376.05 : 3,758,031.27 = 612,133.89 : x
2. Step 2: Convert to fraction form
   2,505,376.05/3,758,031.27 = 612,133.89/x
3. Step 3: Cross multiply
   2,505,376.05x = 3,758,031.27 × 612,133.89
4. Step 4: Simplify right side
   2,505,376.05x = 2,300,418,300,046.74
5. Step 5: Solve for x
   x = 2,300,418,300,046.74/2,505,376.05
6. Step 6: Final answer
   x = 918,192.82