Finding the Fourth Proportional to 1,499.60, 2,069.46 and 836.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.60 : 2,069.46 = 836.51 : x
2. Step 2: Convert to fraction form
   1,499.60/2,069.46 = 836.51/x
3. Step 3: Cross multiply
   1,499.60x = 2,069.46 × 836.51
4. Step 4: Simplify right side
   1,499.60x = 1,731,113.64
5. Step 5: Solve for x
   x = 1,731,113.64/1,499.60
6. Step 6: Final answer
   x = 1,154.39