Finding the Fourth Proportional to 1,117,718.52, 1,539,513.30 and 859,100.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,117,718.52 : 1,539,513.30 = 859,100.91 : x
2. Step 2: Convert to fraction form
   1,117,718.52/1,539,513.30 = 859,100.91/x
3. Step 3: Cross multiply
   1,117,718.52x = 1,539,513.30 × 859,100.91
4. Step 4: Simplify right side
   1,117,718.52x = 1,322,597,276,987.10
5. Step 5: Solve for x
   x = 1,322,597,276,987.10/1,117,718.52
6. Step 6: Final answer
   x = 1,183,300.85