Finding the Fourth Proportional to 2,112,388.74, 2,915,097.24 and 1,145,518.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112,388.74 : 2,915,097.24 = 1,145,518.74 : x
2. Step 2: Convert to fraction form
   2,112,388.74/2,915,097.24 = 1,145,518.74/x
3. Step 3: Cross multiply
   2,112,388.74x = 2,915,097.24 × 1,145,518.74
4. Step 4: Simplify right side
   2,112,388.74x = 3,339,298,517,342.28
5. Step 5: Solve for x
   x = 3,339,298,517,342.28/2,112,388.74
6. Step 6: Final answer
   x = 1,580,816.28