Finding the Fourth Proportional to 2,638,196.64, 3,957,448.04 and 744,779.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638,196.64 : 3,957,448.04 = 744,779.52 : x
2. Step 2: Convert to fraction form
   2,638,196.64/3,957,448.04 = 744,779.52/x
3. Step 3: Cross multiply
   2,638,196.64x = 3,957,448.04 × 744,779.52
4. Step 4: Simplify right side
   2,638,196.64x = 2,947,426,251,656.14
5. Step 5: Solve for x
   x = 2,947,426,251,656.14/2,638,196.64
6. Step 6: Final answer
   x = 1,117,212.50