Finding the Fourth Proportional to 1,638,111.52, 2,261,746.56 and 1,149,120.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,638,111.52 : 2,261,746.56 = 1,149,120.64 : x
2. Step 2: Convert to fraction form
   1,638,111.52/2,261,746.56 = 1,149,120.64/x
3. Step 3: Cross multiply
   1,638,111.52x = 2,261,746.56 × 1,149,120.64
4. Step 4: Simplify right side
   1,638,111.52x = 2,599,019,654,545.00
5. Step 5: Solve for x
   x = 2,599,019,654,545.00/1,638,111.52
6. Step 6: Final answer
   x = 1,586,595.07