Finding the Fourth Proportional to 900,870.27, 1,351,092.15 and 261,004.65

Step by Step Solution

1. Step 1: Write the proportion equation
   900,870.27 : 1,351,092.15 = 261,004.65 : x
2. Step 2: Convert to fraction form
   900,870.27/1,351,092.15 = 261,004.65/x
3. Step 3: Cross multiply
   900,870.27x = 1,351,092.15 × 261,004.65
4. Step 4: Simplify right side
   900,870.27x = 352,641,333,728.50
5. Step 5: Solve for x
   x = 352,641,333,728.50/900,870.27
6. Step 6: Final answer
   x = 391,445.19