Finding the Fourth Proportional to 1,140,141.32, 1,706,802.42 and 689,498.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,140,141.32 : 1,706,802.42 = 689,498.36 : x
2. Step 2: Convert to fraction form
   1,140,141.32/1,706,802.42 = 689,498.36/x
3. Step 3: Cross multiply
   1,140,141.32x = 1,706,802.42 × 689,498.36
4. Step 4: Simplify right side
   1,140,141.32x = 1,176,837,469,434.03
5. Step 5: Solve for x
   x = 1,176,837,469,434.03/1,140,141.32
6. Step 6: Final answer
   x = 1,032,185.61