Finding the Fourth Proportional to 1,868,128, 2,578,019.56 and 1,063,312

Step by Step Solution

1. Step 1: Write the proportion equation
   1,868,128 : 2,578,019.56 = 1,063,312 : x
2. Step 2: Convert to fraction form
   1,868,128/2,578,019.56 = 1,063,312/x
3. Step 3: Cross multiply
   1,868,128x = 2,578,019.56 × 1,063,312
4. Step 4: Simplify right side
   1,868,128x = 2,741,239,134,382.72
5. Step 5: Solve for x
   x = 2,741,239,134,382.72/1,868,128
6. Step 6: Final answer
   x = 1,467,372.22