Finding the Fourth Proportional to 898,300.80, 1,347,606.86 and 366,111.36

Step by Step Solution

1. Step 1: Write the proportion equation
   898,300.80 : 1,347,606.86 = 366,111.36 : x
2. Step 2: Convert to fraction form
   898,300.80/1,347,606.86 = 366,111.36/x
3. Step 3: Cross multiply
   898,300.80x = 1,347,606.86 × 366,111.36
4. Step 4: Simplify right side
   898,300.80x = 493,374,178,429.37
5. Step 5: Solve for x
   x = 493,374,178,429.37/898,300.80
6. Step 6: Final answer
   x = 549,230.48