Finding the Fourth Proportional to 1,913,823.72, 2,640,528.72 and 1,138,806.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,913,823.72 : 2,640,528.72 = 1,138,806.81 : x
2. Step 2: Convert to fraction form
   1,913,823.72/2,640,528.72 = 1,138,806.81/x
3. Step 3: Cross multiply
   1,913,823.72x = 2,640,528.72 × 1,138,806.81
4. Step 4: Simplify right side
   1,913,823.72x = 3,007,052,088,336.58
5. Step 5: Solve for x
   x = 3,007,052,088,336.58/1,913,823.72
6. Step 6: Final answer
   x = 1,571,227.31