Finding the Fourth Proportional to 1,123,368.30, 1,685,271.15 and 483,670.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,368.30 : 1,685,271.15 = 483,670.80 : x
2. Step 2: Convert to fraction form
   1,123,368.30/1,685,271.15 = 483,670.80/x
3. Step 3: Cross multiply
   1,123,368.30x = 1,685,271.15 × 483,670.80
4. Step 4: Simplify right side
   1,123,368.30x = 815,116,445,337.42
5. Step 5: Solve for x
   x = 815,116,445,337.42/1,123,368.30
6. Step 6: Final answer
   x = 725,600.36