Finding the Fourth Proportional to 2,590,967.76, 3,886,113.90 and 769,296.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590,967.76 : 3,886,113.90 = 769,296.05 : x
2. Step 2: Convert to fraction form
   2,590,967.76/3,886,113.90 = 769,296.05/x
3. Step 3: Cross multiply
   2,590,967.76x = 3,886,113.90 × 769,296.05
4. Step 4: Simplify right side
   2,590,967.76x = 2,989,572,071,147.31
5. Step 5: Solve for x
   x = 2,989,572,071,147.31/2,590,967.76
6. Step 6: Final answer
   x = 1,153,843.80