Finding the Fourth Proportional to 2,912,796.78, 4,369,038.09 and 891,041.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,912,796.78 : 4,369,038.09 = 891,041.10 : x
2. Step 2: Convert to fraction form
   2,912,796.78/4,369,038.09 = 891,041.10/x
3. Step 3: Cross multiply
   2,912,796.78x = 4,369,038.09 × 891,041.10
4. Step 4: Simplify right side
   2,912,796.78x = 3,892,992,505,655.50
5. Step 5: Solve for x
   x = 3,892,992,505,655.50/2,912,796.78
6. Step 6: Final answer
   x = 1,336,513.60