Finding the Fourth Proportional to 2,428,512.32, 3,642,103.12 and 912,077.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,428,512.32 : 3,642,103.12 = 912,077.81 : x
2. Step 2: Convert to fraction form
   2,428,512.32/3,642,103.12 = 912,077.81/x
3. Step 3: Cross multiply
   2,428,512.32x = 3,642,103.12 × 912,077.81
4. Step 4: Simplify right side
   2,428,512.32x = 3,321,881,437,483.77
5. Step 5: Solve for x
   x = 3,321,881,437,483.77/2,428,512.32
6. Step 6: Final answer
   x = 1,367,866.83