Finding the Fourth Proportional to 2,290,531.32, 3,161,223.18 and 1,385,111.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290,531.32 : 3,161,223.18 = 1,385,111.16 : x
2. Step 2: Convert to fraction form
   2,290,531.32/3,161,223.18 = 1,385,111.16/x
3. Step 3: Cross multiply
   2,290,531.32x = 3,161,223.18 × 1,385,111.16
4. Step 4: Simplify right side
   2,290,531.32x = 4,378,645,505,868.69
5. Step 5: Solve for x
   x = 4,378,645,505,868.69/2,290,531.32
6. Step 6: Final answer
   x = 1,911,628.74