Finding the Fourth Proportional to 2,285,412.79, 3,429,242.50 and 919,131.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,285,412.79 : 3,429,242.50 = 919,131.95 : x
2. Step 2: Convert to fraction form
   2,285,412.79/3,429,242.50 = 919,131.95/x
3. Step 3: Cross multiply
   2,285,412.79x = 3,429,242.50 × 919,131.95
4. Step 4: Simplify right side
   2,285,412.79x = 3,151,926,354,046.52
5. Step 5: Solve for x
   x = 3,151,926,354,046.52/2,285,412.79
6. Step 6: Final answer
   x = 1,379,149.70