Finding the Fourth Proportional to 1,194,405.50, 1,648,279.61 and 657,861.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,194,405.50 : 1,648,279.61 = 657,861.50 : x
2. Step 2: Convert to fraction form
   1,194,405.50/1,648,279.61 = 657,861.50/x
3. Step 3: Cross multiply
   1,194,405.50x = 1,648,279.61 × 657,861.50
4. Step 4: Simplify right side
   1,194,405.50x = 1,084,339,696,654.02
5. Step 5: Solve for x
   x = 1,084,339,696,654.02/1,194,405.50
6. Step 6: Final answer
   x = 907,848.88