Finding the Fourth Proportional to 1,148,300.60, 1,584,828.98 and 689,668.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,148,300.60 : 1,584,828.98 = 689,668.42 : x
2. Step 2: Convert to fraction form
   1,148,300.60/1,584,828.98 = 689,668.42/x
3. Step 3: Cross multiply
   1,148,300.60x = 1,584,828.98 × 689,668.42
4. Step 4: Simplify right side
   1,148,300.60x = 1,093,006,498,606.81
5. Step 5: Solve for x
   x = 1,093,006,498,606.81/1,148,300.60
6. Step 6: Final answer
   x = 951,847.02