Finding the Fourth Proportional to 1,818,866.59, 2,727,549.18 and 620,885.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,818,866.59 : 2,727,549.18 = 620,885.50 : x
2. Step 2: Convert to fraction form
   1,818,866.59/2,727,549.18 = 620,885.50/x
3. Step 3: Cross multiply
   1,818,866.59x = 2,727,549.18 × 620,885.50
4. Step 4: Simplify right side
   1,818,866.59x = 1,693,495,736,398.89
5. Step 5: Solve for x
   x = 1,693,495,736,398.89/1,818,866.59
6. Step 6: Final answer
   x = 931,071.99